1 00:00:12,250 --> 00:00:06,150 you 2 00:00:17,710 --> 00:00:14,129 [Music] 3 00:00:20,350 --> 00:00:17,720 so welcome everybody on behalf of the 4 00:00:22,060 --> 00:00:20,360 astrobiology Science Conference and ASU 5 00:00:25,089 --> 00:00:22,070 planet works I'd like to welcome you to 6 00:00:28,269 --> 00:00:25,099 this public event managing earth as a 7 00:00:29,230 --> 00:00:28,279 planet Mr Al Anbar I'm a professor in 8 00:00:31,210 --> 00:00:29,240 the school of Earth and space 9 00:00:34,090 --> 00:00:31,220 exploration at ASU and also director of 10 00:00:35,799 --> 00:00:34,100 planet works and I'm one of 800 11 00:00:38,259 --> 00:00:35,809 astrobiologists who spent the past four 12 00:00:40,330 --> 00:00:38,269 days here thinking and learning about 13 00:00:43,270 --> 00:00:40,340 one of the most fantastic scientific 14 00:00:46,150 --> 00:00:43,280 quests that humanity is undertaking the 15 00:00:47,799 --> 00:00:46,160 search for life beyond Earth it's 16 00:00:49,150 --> 00:00:47,809 impossible to think about that topic is 17 00:00:50,979 --> 00:00:49,160 impossible to think about life on other 18 00:00:54,100 --> 00:00:50,989 worlds without also thinking about the 19 00:00:57,069 --> 00:00:54,110 future of this world and that future is 20 00:00:59,020 --> 00:00:57,079 in our hands in human hands because 21 00:01:00,790 --> 00:00:59,030 we're entering a remarkable new epoch of 22 00:01:02,139 --> 00:01:00,800 Earth's evolution an epoch that 23 00:01:04,299 --> 00:01:02,149 scientists are starting to call the 24 00:01:05,650 --> 00:01:04,309 Anthropocene that's what we call this 25 00:01:07,150 --> 00:01:05,660 new epoch during which humanity is 26 00:01:09,490 --> 00:01:07,160 becoming one of the most powerful forces 27 00:01:12,820 --> 00:01:09,500 on the planet and it's an era that's 28 00:01:14,380 --> 00:01:12,830 both remarkable and frightening because 29 00:01:16,899 --> 00:01:14,390 we have to grapple with it with a very 30 00:01:18,910 --> 00:01:16,909 big question do we as a species have the 31 00:01:21,370 --> 00:01:18,920 wisdom to manage the future of this 32 00:01:22,539 --> 00:01:21,380 planet so working with the origins 33 00:01:25,090 --> 00:01:22,549 project we've assembled a fantastic 34 00:01:26,880 --> 00:01:25,100 panel to discuss this future and so I'm 35 00:01:29,590 --> 00:01:26,890 pleased to turn the proceedings over to 36 00:01:36,460 --> 00:01:29,600 Lawrence Krauss the director of the ASU 37 00:01:38,950 --> 00:01:36,470 origins project Thank You Carol does 38 00:01:41,140 --> 00:01:38,960 this work is this working okay I can 39 00:01:43,539 --> 00:01:41,150 hear myself good well thank you for 40 00:01:48,340 --> 00:01:43,549 coming and finding this room which is no 41 00:01:50,950 --> 00:01:48,350 small feat and we are pleased to have a 42 00:01:53,469 --> 00:01:50,960 wonderful panel here to discuss that the 43 00:01:57,670 --> 00:01:53,479 official title the long the long form 44 00:01:59,620 --> 00:01:57,680 title of this panel is managing earth as 45 00:02:02,350 --> 00:01:59,630 a planet how astrobiology and 46 00:02:04,990 --> 00:02:02,360 exploration inform a perspective of 47 00:02:06,639 --> 00:02:05,000 planetary stewardship so we're going to 48 00:02:09,880 --> 00:02:06,649 talk about planetary stewardship in this 49 00:02:11,710 --> 00:02:09,890 particular era which which is a RAL 50 00:02:14,759 --> 00:02:11,720 mentioned as the Anthropocene now the 51 00:02:16,780 --> 00:02:14,769 interesting thing is this meeting is of 52 00:02:18,550 --> 00:02:16,790 astrobiology one of the main parts of 53 00:02:19,900 --> 00:02:18,560 astrobiology is to look for life 54 00:02:22,030 --> 00:02:19,910 elsewhere in the universe and to find 55 00:02:25,270 --> 00:02:22,040 out whether there are habitable planets 56 00:02:26,230 --> 00:02:25,280 at every every week almost 1:1 here's 57 00:02:28,000 --> 00:02:26,240 about a new habitable 58 00:02:31,000 --> 00:02:28,010 and I was just talking about one on or 59 00:02:34,120 --> 00:02:31,010 two on on TV yesterday actually in our 60 00:02:35,740 --> 00:02:34,130 PBS station and discoveries are made all 61 00:02:37,450 --> 00:02:35,750 the time of what are potentially 62 00:02:39,550 --> 00:02:37,460 habitable planets and right now 63 00:02:41,320 --> 00:02:39,560 habitable planets are often defined as 64 00:02:43,450 --> 00:02:41,330 water worlds worlds that have liquid 65 00:02:45,520 --> 00:02:43,460 water now the interesting thing is 66 00:02:47,740 --> 00:02:45,530 that's a gross sort of a gross 67 00:02:50,350 --> 00:02:47,750 definition because we live in a 68 00:02:52,780 --> 00:02:50,360 habitable planet but that but what's 69 00:02:55,450 --> 00:02:52,790 rather interesting and sad is that while 70 00:02:57,280 --> 00:02:55,460 we live in a habitable planet rather 71 00:02:59,560 --> 00:02:57,290 quickly large parts of the planet are 72 00:03:02,230 --> 00:02:59,570 becoming inhabitable at least for 73 00:03:05,050 --> 00:03:02,240 life-forms like ourselves and that's a 74 00:03:07,090 --> 00:03:05,060 concern and and it's a concern because 75 00:03:09,580 --> 00:03:07,100 indeed as I mentioned we're entering an 76 00:03:11,890 --> 00:03:09,590 era where humans are having a global 77 00:03:13,300 --> 00:03:11,900 impact on the environment in a way 78 00:03:14,560 --> 00:03:13,310 that's never happened before changing 79 00:03:19,600 --> 00:03:14,570 the environment and changing the climate 80 00:03:22,780 --> 00:03:19,610 of this planet and in ways that that at 81 00:03:25,180 --> 00:03:22,790 this point are inevitable I'm sad to say 82 00:03:27,250 --> 00:03:25,190 the climate change is happening it's not 83 00:03:29,170 --> 00:03:27,260 something in the future and the carbon 84 00:03:30,880 --> 00:03:29,180 that we put up in the in the carbon 85 00:03:32,680 --> 00:03:30,890 dioxide that we put up in the atmosphere 86 00:03:34,960 --> 00:03:32,690 is going to stay there for about a 87 00:03:37,000 --> 00:03:34,970 thousand years unless we do something 88 00:03:39,580 --> 00:03:37,010 about it and that means that they're 89 00:03:41,500 --> 00:03:39,590 going to have huge impacts on the planet 90 00:03:45,130 --> 00:03:41,510 from obviously sea level rise and the 91 00:03:47,440 --> 00:03:45,140 acidification of oceans and more severe 92 00:03:49,690 --> 00:03:47,450 storms and and drop droughts around the 93 00:03:51,370 --> 00:03:49,700 world maybe in the southwest as well I 94 00:03:53,200 --> 00:03:51,380 want to start by the way on a low level 95 00:03:54,790 --> 00:03:53,210 and I'm going to allow the panelists to 96 00:03:58,150 --> 00:03:54,800 be a little more optimistic so I'm going 97 00:03:59,950 --> 00:03:58,160 to present the pessimistic view and that 98 00:04:02,560 --> 00:03:59,960 means we have to consider ways we either 99 00:04:05,050 --> 00:04:02,570 live with that and die with that or we 100 00:04:10,150 --> 00:04:05,060 think about ways to manage the planet we 101 00:04:12,100 --> 00:04:10,160 live on in this new era where as as my 102 00:04:13,900 --> 00:04:12,110 my I think my friend Jim Hanson use 103 00:04:16,539 --> 00:04:13,910 always says if you broke it you fix it 104 00:04:18,820 --> 00:04:16,549 it's yours and we've broken it and now 105 00:04:22,150 --> 00:04:18,830 it's up to us to own up with to that 106 00:04:24,600 --> 00:04:22,160 problem and that means trying to 107 00:04:27,130 --> 00:04:24,610 understand the processes that affect 108 00:04:28,570 --> 00:04:27,140 this planet and one of the ways to think 109 00:04:29,740 --> 00:04:28,580 about that is to think about planets 110 00:04:32,020 --> 00:04:29,750 more generally which is one of the 111 00:04:33,250 --> 00:04:32,030 reasons why it's useful to have this 112 00:04:36,370 --> 00:04:33,260 group here at this particular meeting 113 00:04:38,440 --> 00:04:36,380 and also ways to model the future and 114 00:04:39,519 --> 00:04:38,450 ways to try and impact the future in 115 00:04:40,749 --> 00:04:39,529 each of our 116 00:04:42,999 --> 00:04:40,759 analyst is going to talk in different 117 00:04:44,859 --> 00:04:43,009 ways about viewing the planet and that 118 00:04:48,299 --> 00:04:44,869 means thinking in new terms thinking 119 00:04:51,099 --> 00:04:48,309 about the cost of things that that that 120 00:04:52,659 --> 00:04:51,109 economists never thought of is costing 121 00:04:54,609 --> 00:04:52,669 things because if they're an infinite 122 00:04:57,219 --> 00:04:54,619 number of resources you never have to 123 00:04:59,769 --> 00:04:57,229 really take into account the cost of 124 00:05:01,919 --> 00:04:59,779 resources but we're well past that we 125 00:05:03,819 --> 00:05:01,929 have to think of the cost of carbon 126 00:05:06,039 --> 00:05:03,829 people talk about that a lot but they 127 00:05:07,809 --> 00:05:06,049 don't talk about the cost of water which 128 00:05:09,399 --> 00:05:07,819 is probably going to be equally severe 129 00:05:10,839 --> 00:05:09,409 and one of the reasons I want to sort of 130 00:05:12,759 --> 00:05:10,849 end my little introduction with water 131 00:05:16,059 --> 00:05:12,769 which in one ways because we live in a 132 00:05:18,579 --> 00:05:16,069 water planet is that climate change and 133 00:05:20,829 --> 00:05:18,589 the availability of fresh water not just 134 00:05:22,929 --> 00:05:20,839 ocean sea level rise are intimately 135 00:05:26,979 --> 00:05:22,939 related and and the origins project is 136 00:05:29,229 --> 00:05:26,989 actually after sponsoring this this 137 00:05:31,689 --> 00:05:29,239 panel took over the next weekend is 138 00:05:33,489 --> 00:05:31,699 having a a weekend on climate change 139 00:05:35,499 --> 00:05:33,499 awareness we're having a scientific 140 00:05:37,269 --> 00:05:35,509 conference on the coming water wars 141 00:05:40,299 --> 00:05:37,279 where we're going to bring people in to 142 00:05:42,579 --> 00:05:40,309 talk about everything from locally the 143 00:05:45,939 --> 00:05:42,589 availability fresh water to to globally 144 00:05:48,039 --> 00:05:45,949 that problem and issues of available 145 00:05:50,199 --> 00:05:48,049 fresh water and sea level rise and 146 00:05:52,179 --> 00:05:50,209 climate change more generally and as we 147 00:05:53,799 --> 00:05:52,189 also like to do we also have several 148 00:05:55,299 --> 00:05:53,809 public events associated with that and 149 00:05:57,819 --> 00:05:55,309 this is in some sense is that the 150 00:06:00,999 --> 00:05:57,829 opening public event the the next two 151 00:06:02,859 --> 00:06:01,009 nights in Gammage auditorium we're going 152 00:06:04,509 --> 00:06:02,869 to have show some films related to this 153 00:06:06,929 --> 00:06:04,519 and have the directors involved and 154 00:06:09,009 --> 00:06:06,939 tomorrow night we're going to have 155 00:06:11,289 --> 00:06:09,019 Fisher Stevens who along with Leo 156 00:06:13,409 --> 00:06:11,299 DiCaprio created a movie called before 157 00:06:15,099 --> 00:06:13,419 the flood and at Gammage auditorium 158 00:06:16,479 --> 00:06:15,109 we're going to have we're going to 159 00:06:19,479 --> 00:06:16,489 screen the movie and then Fisher Stevens 160 00:06:22,449 --> 00:06:19,489 will be here to talk about it with me 161 00:06:23,889 --> 00:06:22,459 afterwards Leo DiCaprio was actually 162 00:06:25,569 --> 00:06:23,899 going to be with us but he has a climate 163 00:06:28,119 --> 00:06:25,579 change March in Washington the next day 164 00:06:29,259 --> 00:06:28,129 and then and then and then Saturday 165 00:06:30,519 --> 00:06:29,269 night and you can get tickets through 166 00:06:34,029 --> 00:06:30,529 both nights we're going to have a 167 00:06:40,119 --> 00:06:34,039 different view a fictional view of an 168 00:06:42,429 --> 00:06:40,129 eco drama of a possible tragic set of 169 00:06:44,049 --> 00:06:42,439 events that relate to water and the 170 00:06:46,149 --> 00:06:44,059 director is the famous director Verner 171 00:06:48,429 --> 00:06:46,159 Hertzog at the movies called salt and 172 00:06:51,939 --> 00:06:48,439 fire and Verner Hertzog will be here 173 00:06:53,500 --> 00:06:51,949 with us on Saturday night and we're also 174 00:06:57,430 --> 00:06:53,510 going to as well as talking 175 00:06:59,650 --> 00:06:57,440 of that fictional tragedy or crisis 176 00:07:01,900 --> 00:06:59,660 we're going to have Jeffrey Sachs one of 177 00:07:03,400 --> 00:07:01,910 the world's most famous economists who 178 00:07:05,050 --> 00:07:03,410 has thought a lot about climate change 179 00:07:07,990 --> 00:07:05,060 and advised the UN among other things 180 00:07:09,280 --> 00:07:08,000 and he'll be there so so Verner Jeffry 181 00:07:10,930 --> 00:07:09,290 and I will have a dialogue after the 182 00:07:12,520 --> 00:07:10,940 movie so I encourage you to consider 183 00:07:15,640 --> 00:07:12,530 their tickets available still for both 184 00:07:19,660 --> 00:07:15,650 at Gammage auditorium at ASU so having 185 00:07:22,450 --> 00:07:19,670 made that that announcement let me just 186 00:07:25,120 --> 00:07:22,460 talk to you about one aspect of water 187 00:07:26,770 --> 00:07:25,130 and the end the end the Anthropocene 188 00:07:28,840 --> 00:07:26,780 before I turn to our panelists just to 189 00:07:30,550 --> 00:07:28,850 start as I say lo there's a wonderful 190 00:07:32,770 --> 00:07:30,560 book which one my colleagues gave to me 191 00:07:35,830 --> 00:07:32,780 called water the epic struggle for 192 00:07:39,730 --> 00:07:35,840 wealth power and something else which I 193 00:07:41,260 --> 00:07:39,740 can't read and and one of the first 194 00:07:44,350 --> 00:07:41,270 things in here is that water is quickly 195 00:07:48,070 --> 00:07:44,360 overtaking oil as the world's scarcest 196 00:07:50,110 --> 00:07:48,080 critical natural resource today at the 197 00:07:52,630 --> 00:07:50,120 beginning of the 21st century there's 198 00:07:55,630 --> 00:07:52,640 hardly an accessible freshwater source 199 00:07:57,280 --> 00:07:55,640 or a strategically placed waterway on an 200 00:07:59,410 --> 00:07:57,290 economically advanced part of the planet 201 00:08:01,540 --> 00:07:59,420 that has not been radically and often 202 00:08:04,150 --> 00:08:01,550 monumentally engineered by man's 203 00:08:05,920 --> 00:08:04,160 prodigious industrial power as world 204 00:08:09,430 --> 00:08:05,930 population continues to be propelled 205 00:08:10,930 --> 00:08:09,440 towards 9 billion by 2050 with so many 206 00:08:12,880 --> 00:08:10,940 third world and happened and starting to 207 00:08:14,890 --> 00:08:12,890 move up towards consumption and waste 208 00:08:16,600 --> 00:08:14,900 generation levels of the one fifth 209 00:08:18,490 --> 00:08:16,610 living in industrialised nations now 210 00:08:19,690 --> 00:08:18,500 demand for more fresh water is 211 00:08:22,960 --> 00:08:19,700 continuing to soar 212 00:08:24,940 --> 00:08:22,970 yet as written here but we'll see 213 00:08:26,950 --> 00:08:24,950 whether our panelists can affect discuss 214 00:08:28,840 --> 00:08:26,960 that as well as other things yet no new 215 00:08:32,020 --> 00:08:28,850 innovative breakthrough capable of 216 00:08:33,550 --> 00:08:32,030 expanding usable water supply on a large 217 00:08:36,400 --> 00:08:33,560 enough scale to meet the demand is 218 00:08:39,040 --> 00:08:36,410 anywhere evident on the horizon over the 219 00:08:41,550 --> 00:08:39,050 past two centuries fresh water usage has 220 00:08:43,750 --> 00:08:41,560 grown two times faster than population 221 00:08:45,850 --> 00:08:43,760 humans are affecting every part of this 222 00:08:48,160 --> 00:08:45,860 planet and we need to understand that 223 00:08:50,230 --> 00:08:48,170 and deal with it and that's why if we 224 00:08:52,300 --> 00:08:50,240 fortune favors the prepared mind and 225 00:08:56,140 --> 00:08:52,310 that's why we've invited for prepared 226 00:08:58,450 --> 00:08:56,150 minds to UM to talk today and the first 227 00:08:59,860 --> 00:08:58,460 the first panel if someone introduces an 228 00:09:02,560 --> 00:08:59,870 old friend of mine John Grunsfeld who's 229 00:09:04,360 --> 00:09:02,570 a famous for being an astronaut among 230 00:09:06,100 --> 00:09:04,370 other things one of my favorite 231 00:09:07,730 --> 00:09:06,110 astronauts of the whole of the whole 232 00:09:11,750 --> 00:09:07,740 crew because he's an ass 233 00:09:13,220 --> 00:09:11,760 not scientist and and truly excels in 234 00:09:15,380 --> 00:09:13,230 both of those things not only is John 235 00:09:18,080 --> 00:09:15,390 been on five different trips to the 236 00:09:19,910 --> 00:09:18,090 Space Shuttle to these International 237 00:09:22,340 --> 00:09:19,920 Space Station's with the spacial he has 238 00:09:28,760 --> 00:09:22,350 he has fixed the Hubble Space Telescope 239 00:09:32,090 --> 00:09:28,770 three times three times and he is a is a 240 00:09:34,220 --> 00:09:32,100 scientist he graduated from MIT in 241 00:09:36,560 --> 00:09:34,230 physics and then at the University of 242 00:09:37,880 --> 00:09:36,570 Chicago did his PhD in physics then went 243 00:09:40,820 --> 00:09:37,890 to Caltech where he's a research 244 00:09:44,870 --> 00:09:40,830 professor and then decided to become an 245 00:09:47,330 --> 00:09:44,880 astronaut and and and radically affect 246 00:09:49,220 --> 00:09:47,340 our the future of science by helping 247 00:09:52,850 --> 00:09:49,230 repair the Hubble Space Telescope and 248 00:09:54,830 --> 00:09:52,860 then and then he after after ending that 249 00:09:58,100 --> 00:09:54,840 period he went and actually was deputy 250 00:10:01,370 --> 00:09:58,110 director of the of the Hubble Space 251 00:10:03,650 --> 00:10:01,380 Telescope Institute and then decided he 252 00:10:06,320 --> 00:10:03,660 missed NASA too much and he went back to 253 00:10:08,270 --> 00:10:06,330 be the associate administrator basically 254 00:10:10,100 --> 00:10:08,280 the head of science at NASA and he's 255 00:10:11,930 --> 00:10:10,110 been spearheading science at NASA during 256 00:10:14,020 --> 00:10:11,940 that time from which he's just retired 257 00:10:18,580 --> 00:10:14,030 and is now going back to be an 258 00:10:26,170 --> 00:10:18,590 astrobiologist john thank you very much 259 00:10:32,780 --> 00:10:30,800 all righty so astronauts are not really 260 00:10:34,250 --> 00:10:32,790 well known for their humanity and 261 00:10:36,590 --> 00:10:34,260 certainly not scientists you know we 262 00:10:41,329 --> 00:10:36,600 tend to like our science and to avoid 263 00:10:43,220 --> 00:10:41,339 all human contact but the story that 264 00:10:44,720 --> 00:10:43,230 Lawrence just laid out it is a human 265 00:10:46,460 --> 00:10:44,730 story it's about planet Earth but it's 266 00:10:48,410 --> 00:10:46,470 about humans on planet Earth in our 267 00:10:49,880 --> 00:10:48,420 interaction with the planet so I thought 268 00:10:52,340 --> 00:10:49,890 I would give you the human perspective 269 00:10:55,250 --> 00:10:52,350 from orbit you know not the Hubble Space 270 00:10:56,449 --> 00:10:55,260 Telescope repair stuff and I don't know 271 00:10:58,370 --> 00:10:56,459 how well you can see but this is 272 00:11:01,220 --> 00:10:58,380 actually a picture of me working in a 273 00:11:02,810 --> 00:11:01,230 vacuum which is really made total sense 274 00:11:04,460 --> 00:11:02,820 to me because all my life people have 275 00:11:08,240 --> 00:11:04,470 been saying what you work in a vacuum 276 00:11:10,310 --> 00:11:08,250 and and in fact yes I do 277 00:11:12,170 --> 00:11:10,320 but what selling about this picture is I 278 00:11:13,940 --> 00:11:12,180 am out in a vacuum in my spacesuit which 279 00:11:16,269 --> 00:11:13,950 is sort of like a mini earth it has its 280 00:11:19,790 --> 00:11:16,279 own environmental control system but 281 00:11:23,750 --> 00:11:19,800 reflected in my visor is a reflection of 282 00:11:26,030 --> 00:11:23,760 planet Earth and truly the view from 283 00:11:28,730 --> 00:11:26,040 space is the best place to look at the 284 00:11:30,740 --> 00:11:28,740 earth and something that I enjoy greatly 285 00:11:33,350 --> 00:11:30,750 and you can see on my face is a huge 286 00:11:35,870 --> 00:11:33,360 grin and that grin I have almost all the 287 00:11:37,400 --> 00:11:35,880 time when I'm in space now most of what 288 00:11:39,980 --> 00:11:37,410 you're going to see here is the images 289 00:11:42,019 --> 00:11:39,990 that I took on a mission in 2009 to the 290 00:11:43,760 --> 00:11:42,029 Hubble Space Telescope through the space 291 00:11:45,590 --> 00:11:43,770 shuttle windows and so they're not 292 00:11:47,240 --> 00:11:45,600 always super clear because somebody else 293 00:11:49,040 --> 00:11:47,250 tucked their face up against the window 294 00:11:51,860 --> 00:11:49,050 and gotten you know some grease on it 295 00:11:53,329 --> 00:11:51,870 but we really have this fabulous view 296 00:11:56,240 --> 00:11:53,339 with the space shuttle and now the space 297 00:11:59,300 --> 00:11:56,250 station the images were taken with a 298 00:12:01,670 --> 00:11:59,310 standard you know Nikon digital camera 299 00:12:04,699 --> 00:12:01,680 sometimes a wide-angle lens sometimes a 300 00:12:06,050 --> 00:12:04,709 long lens so you know this is the kind 301 00:12:09,140 --> 00:12:06,060 of use there's something in the way in 302 00:12:10,940 --> 00:12:09,150 this picture of the earth that's the 303 00:12:13,460 --> 00:12:10,950 Hubble Space Telescope after we deployed 304 00:12:15,740 --> 00:12:13,470 it and you know the views of the earth 305 00:12:17,750 --> 00:12:15,750 that you've heard about from astronauts 306 00:12:20,240 --> 00:12:17,760 you know maybe you've heard a lot of 307 00:12:22,280 --> 00:12:20,250 flowery talk about you know how the 308 00:12:24,620 --> 00:12:22,290 earth looks perfect and there's no 309 00:12:28,449 --> 00:12:24,630 borders and you know you can't see the 310 00:12:31,819 --> 00:12:28,459 strife of humans on earth from space 311 00:12:34,489 --> 00:12:31,829 none of that's true but that doesn't 312 00:12:36,559 --> 00:12:34,499 change the beauty of the earth 313 00:12:38,299 --> 00:12:36,569 since this is an astrobiology conference 314 00:12:40,159 --> 00:12:38,309 what I thought I would do is take the 315 00:12:41,839 --> 00:12:40,169 view of you know what if some alien 316 00:12:44,989 --> 00:12:41,849 species were coming into our solar 317 00:12:47,269 --> 00:12:44,999 system and you know wanted to look at 318 00:12:49,609 --> 00:12:47,279 the earth now for the astrobiologists in 319 00:12:51,019 --> 00:12:49,619 the audience I do want to just say you 320 00:12:52,579 --> 00:12:51,029 know that one of the things that strikes 321 00:12:55,279 --> 00:12:52,589 me the most and for all of you in fact 322 00:12:57,739 --> 00:12:55,289 is that the Earth's atmosphere really is 323 00:13:00,529 --> 00:12:57,749 tremendously thin and fragile and this 324 00:13:03,469 --> 00:13:00,539 is a sunrise over the Earth's limb and 325 00:13:05,209 --> 00:13:03,479 that thin line is a hundred kilometers 326 00:13:07,399 --> 00:13:05,219 or so of our atmosphere of which are 327 00:13:10,219 --> 00:13:07,409 habitable part of the atmosphere is only 328 00:13:12,829 --> 00:13:10,229 a very thin one and also when we do 329 00:13:14,329 --> 00:13:12,839 transit spectroscopy that's the amount 330 00:13:17,659 --> 00:13:14,339 of atmosphere we're able to look through 331 00:13:19,399 --> 00:13:17,669 which is to me pretty incredible so here 332 00:13:21,649 --> 00:13:19,409 we are on our voyage we're approaching 333 00:13:23,119 --> 00:13:21,659 the earth and I and this is acts an 334 00:13:25,639 --> 00:13:23,129 image that was taken with the Lunar 335 00:13:28,339 --> 00:13:25,649 Reconnaissance Orbiter camera centered 336 00:13:30,319 --> 00:13:28,349 here at Arizona State University at CC 337 00:13:33,139 --> 00:13:30,329 by Mark Robinson and his team and 338 00:13:35,059 --> 00:13:33,149 students it's a satellite orbiting the 339 00:13:37,429 --> 00:13:35,069 moon and it looked back at Planet Earth 340 00:13:39,409 --> 00:13:37,439 and from this distance in fact you can 341 00:13:41,419 --> 00:13:39,419 see the earth as kind of this pristine 342 00:13:43,699 --> 00:13:41,429 you know planet that you know is 343 00:13:45,349 --> 00:13:43,709 unaffected by the goings on if you watch 344 00:13:48,489 --> 00:13:45,359 for a while you would see you know 345 00:13:51,829 --> 00:13:48,499 Africa going through its seasons and 346 00:13:53,960 --> 00:13:51,839 lots of storms but as we get closer we 347 00:13:56,269 --> 00:13:53,970 immediately start to see ah there's 348 00:13:59,449 --> 00:13:56,279 something funny going on there this is a 349 00:14:01,489 --> 00:13:59,459 picture of the Big Island of Hawaii as 350 00:14:03,229 --> 00:14:01,499 we flew over and if you look in the 351 00:14:05,869 --> 00:14:03,239 upper right of that photo and and also 352 00:14:08,269 --> 00:14:05,879 in a sort of center right you can see 353 00:14:09,919 --> 00:14:08,279 contrails you know nature doesn't 354 00:14:11,719 --> 00:14:09,929 usually make these long straight things 355 00:14:14,449 --> 00:14:11,729 and those are of course airplanes going 356 00:14:16,399 --> 00:14:14,459 in and out of Kona and to Hilo carrying 357 00:14:18,619 --> 00:14:16,409 lots of tourists and a few astronomers 358 00:14:20,960 --> 00:14:18,629 if you look closely with that long lens 359 00:14:22,999 --> 00:14:20,970 on the summit of Mauna Kea those little 360 00:14:24,589 --> 00:14:23,009 white dots are the observatories and you 361 00:14:26,210 --> 00:14:24,599 can see the Keck Observatory and 362 00:14:29,799 --> 00:14:26,220 infrared telescope facility in the 363 00:14:33,049 --> 00:14:29,809 Subaru telescope and little teeny roads 364 00:14:35,149 --> 00:14:33,059 if you fly over Kennedy Space Center ah 365 00:14:37,819 --> 00:14:35,159 now you find out that not only are there 366 00:14:42,079 --> 00:14:37,829 humans doing industrial things they have 367 00:14:43,909 --> 00:14:42,089 launch pads and runways and bridges and 368 00:14:45,889 --> 00:14:43,919 you know this is what you see when you 369 00:14:48,530 --> 00:14:45,899 look at Florida's you fly over it's 370 00:14:50,000 --> 00:14:48,540 pretty clear there's something going 371 00:14:52,160 --> 00:14:50,010 on there now whether you would assume 372 00:14:54,280 --> 00:14:52,170 its life or some kind of you know robot 373 00:14:57,760 --> 00:14:54,290 automatons you know you might not know 374 00:15:00,110 --> 00:14:57,770 even if you looked at the large scales 375 00:15:01,760 --> 00:15:00,120 what you see there is on this is 376 00:15:03,980 --> 00:15:01,770 obviously the middle east on the left 377 00:15:06,530 --> 00:15:03,990 you can see the great Nile Delta and the 378 00:15:09,460 --> 00:15:06,540 Nile River to the left actually is Lake 379 00:15:12,830 --> 00:15:09,470 Nasser which was only created in about 380 00:15:15,860 --> 00:15:12,840 1990 and they've been diverting the Nile 381 00:15:18,320 --> 00:15:15,870 and so I watched that grow from you know 382 00:15:19,970 --> 00:15:18,330 a puddle to this huge lake that now has 383 00:15:22,160 --> 00:15:19,980 millions and millions of people living 384 00:15:24,440 --> 00:15:22,170 around it and is affecting what goes on 385 00:15:26,600 --> 00:15:24,450 in the Delta as well but if you look to 386 00:15:30,170 --> 00:15:26,610 the right you can see there's sort of a 387 00:15:32,870 --> 00:15:30,180 it looks like a darker patch but off to 388 00:15:36,500 --> 00:15:32,880 the right is Israel and they do have 389 00:15:38,030 --> 00:15:36,510 large-scale desalinization and so 390 00:15:40,850 --> 00:15:38,040 compared to their neighbors they have a 391 00:15:42,170 --> 00:15:40,860 very vibrant agriculture that's not 392 00:15:44,090 --> 00:15:42,180 shared by anyone else and that 393 00:15:47,450 --> 00:15:44,100 highlights them like a random McNally 394 00:15:49,160 --> 00:15:47,460 map that you can see from space you know 395 00:15:50,620 --> 00:15:49,170 that there are borders and that those 396 00:15:53,930 --> 00:15:50,630 borders are different socioeconomic 397 00:15:57,650 --> 00:15:53,940 environments flying a little bit to the 398 00:16:00,890 --> 00:15:57,660 to the east over Iran out in the desert 399 00:16:04,520 --> 00:16:00,900 where nothing grows there's little bats 400 00:16:06,320 --> 00:16:04,530 and if this were a talk earlier in the 401 00:16:08,000 --> 00:16:06,330 week we'd be talking about membranes 402 00:16:11,960 --> 00:16:08,010 surrounding you know some kind of 403 00:16:14,120 --> 00:16:11,970 protoplasm a you know organic molecule 404 00:16:16,190 --> 00:16:14,130 this is center point of irrigation 405 00:16:18,470 --> 00:16:16,200 they've dug down and they're pumping out 406 00:16:20,450 --> 00:16:18,480 water from deep below the desert to do 407 00:16:22,550 --> 00:16:20,460 agriculture in a desert that you know 408 00:16:25,160 --> 00:16:22,560 really shouldn't be growing plants but 409 00:16:26,780 --> 00:16:25,170 it's to feed people and what you see is 410 00:16:28,160 --> 00:16:26,790 that they're successful for a few 411 00:16:29,660 --> 00:16:28,170 decades and then they pumped out the 412 00:16:33,140 --> 00:16:29,670 aquifers and then they dry up and they 413 00:16:35,780 --> 00:16:33,150 move a little bit and so this is an easy 414 00:16:39,290 --> 00:16:35,790 thing to see from space if you're a very 415 00:16:42,200 --> 00:16:39,300 rich country you can expand your land 416 00:16:44,450 --> 00:16:42,210 use this is in Dubai 417 00:16:46,160 --> 00:16:44,460 and the sort of gray area in the middle 418 00:16:48,350 --> 00:16:46,170 is the city millions of people and 419 00:16:50,450 --> 00:16:48,360 they've decided to make huge palm tree 420 00:16:52,790 --> 00:16:50,460 islands out of sand so you see those two 421 00:16:54,290 --> 00:16:52,800 palm trees surrounded by you know some 422 00:16:57,320 --> 00:16:54,300 kind of a dike and they're building 423 00:16:59,390 --> 00:16:57,330 houses there and you can also see more 424 00:17:00,639 --> 00:16:59,400 to the right planet Earth they're 425 00:17:03,639 --> 00:17:00,649 building continents 426 00:17:04,990 --> 00:17:03,649 and a horizon out of sand which is 427 00:17:07,649 --> 00:17:05,000 really hard to maintain because the 428 00:17:10,559 --> 00:17:07,659 tides keep trying to take the sand out 429 00:17:12,669 --> 00:17:10,569 what will the aliens think of that 430 00:17:14,409 --> 00:17:12,679 there's a lot of talk about Sun glint 431 00:17:16,360 --> 00:17:14,419 off of exoplanets so I thought I'd put a 432 00:17:17,980 --> 00:17:16,370 Sun glint picture in this is the Sun 433 00:17:20,740 --> 00:17:17,990 reflecting it just the right angle so 434 00:17:22,990 --> 00:17:20,750 these shrimp farming fields are very 435 00:17:25,240 --> 00:17:23,000 bright along the coast of South America 436 00:17:27,069 --> 00:17:25,250 and you can see some rivers going out 437 00:17:28,990 --> 00:17:27,079 and it allows you to see the patterns of 438 00:17:30,399 --> 00:17:29,000 wind on the water so you can learn a lot 439 00:17:33,100 --> 00:17:30,409 but these are definitely geometric 440 00:17:34,210 --> 00:17:33,110 structures that are not natural and if 441 00:17:36,760 --> 00:17:34,220 you go a little further south in 442 00:17:40,299 --> 00:17:36,770 Argentina this used to be you know 443 00:17:41,620 --> 00:17:40,309 grasslands and forests and it's now been 444 00:17:44,649 --> 00:17:41,630 carved up into all those little pieces 445 00:17:45,970 --> 00:17:44,659 and you see this massive fire and that's 446 00:17:48,250 --> 00:17:45,980 one of the characteristics now that you 447 00:17:50,500 --> 00:17:48,260 see all over planet Earth are massive 448 00:17:52,210 --> 00:17:50,510 fires as they slash and burn forests and 449 00:17:55,620 --> 00:17:52,220 so this is also in South America 450 00:17:57,850 --> 00:17:55,630 clearing rainforests for cattle to graze 451 00:18:01,990 --> 00:17:57,860 incredibly inefficient but that's what's 452 00:18:05,549 --> 00:18:02,000 going on and when I first flew in 1995 453 00:18:09,279 --> 00:18:05,559 there were large tracts of untouched 454 00:18:12,159 --> 00:18:09,289 Amazon basin rainforest especially here 455 00:18:16,960 --> 00:18:12,169 on a tributary the Orinoco River and 456 00:18:18,549 --> 00:18:16,970 that was 1995 by 2009 you just about 457 00:18:20,260 --> 00:18:18,559 can't find some place on planet Earth 458 00:18:23,500 --> 00:18:20,270 that doesn't look like this almost like 459 00:18:25,450 --> 00:18:23,510 it has some kind of a disease but these 460 00:18:26,740 --> 00:18:25,460 are people and companies who want to 461 00:18:28,180 --> 00:18:26,750 farm they want to make a living and 462 00:18:30,310 --> 00:18:28,190 again it's what Lauren said you know 463 00:18:32,080 --> 00:18:30,320 people are modifying the earth and if 464 00:18:34,720 --> 00:18:32,090 you really want to know that there's 465 00:18:36,250 --> 00:18:34,730 life on Earth just look at the Nightside 466 00:18:38,289 --> 00:18:36,260 this is actually from the International 467 00:18:40,389 --> 00:18:38,299 Space Station these are city lights and 468 00:18:42,340 --> 00:18:40,399 it traces out you know the population 469 00:18:44,019 --> 00:18:42,350 this is the central u.s. you'll see like 470 00:18:46,810 --> 00:18:44,029 Michigan coming up in Chicago where I 471 00:18:50,860 --> 00:18:46,820 was born and the dull glow of the 472 00:18:53,049 --> 00:18:50,870 atmosphere and so there's no question 473 00:18:54,600 --> 00:18:53,059 when when those alien spacecraft are on 474 00:18:56,919 --> 00:18:54,610 the backside you know people are 475 00:19:01,570 --> 00:18:56,929 converting coal and natural gas and 476 00:19:03,730 --> 00:19:01,580 other things into into light so for me I 477 00:19:05,380 --> 00:19:03,740 come back and land on planet earth you 478 00:19:07,000 --> 00:19:05,390 know what will the aliens do if they're 479 00:19:08,919 --> 00:19:07,010 not here already you know maybe they'll 480 00:19:11,470 --> 00:19:08,929 say oh no intelligent life on Earth 481 00:19:13,480 --> 00:19:11,480 we're going to go elsewhere but it's 482 00:19:14,500 --> 00:19:13,490 very clear from space that we are 483 00:19:16,000 --> 00:19:14,510 modifying 484 00:19:19,180 --> 00:19:16,010 everywhere on the surface of the earth 485 00:19:22,120 --> 00:19:19,190 the big surprise to me is that in flying 486 00:19:24,280 --> 00:19:22,130 you know something like 58 days in space 487 00:19:26,260 --> 00:19:24,290 looking at the earth I never saw a place 488 00:19:28,690 --> 00:19:26,270 that I couldn't view out the window 489 00:19:30,610 --> 00:19:28,700 I couldn't pretty quickly find someplace 490 00:19:32,799 --> 00:19:30,620 even the open oceans you know a ship 491 00:19:34,360 --> 00:19:32,809 wake with a smokestack where there 492 00:19:36,789 --> 00:19:34,370 wasn't evidence of humans on planet 493 00:19:38,830 --> 00:19:36,799 Earth and so to try and be optimistic a 494 00:19:41,440 --> 00:19:38,840 little bit we now know that we can 495 00:19:43,360 --> 00:19:41,450 modify the atmosphere of a planet we 496 00:19:45,400 --> 00:19:43,370 know we can modify the surface land of a 497 00:19:47,590 --> 00:19:45,410 planet now the question is you know can 498 00:19:49,690 --> 00:19:47,600 we do it in an intelligent way you know 499 00:19:51,880 --> 00:19:49,700 that doesn't make it uninhabitable and 500 00:19:54,430 --> 00:19:51,890 keeps us as a habitable planet so I'll 501 00:20:00,750 --> 00:19:54,440 turn it over back to you Lawrence thanks 502 00:20:06,160 --> 00:20:03,190 thank thanks Joan you always are the 503 00:20:07,750 --> 00:20:06,170 best pictures and and it's always why I 504 00:20:10,210 --> 00:20:07,760 can just watch it for an hour so thank 505 00:20:11,890 --> 00:20:10,220 you or the global mind yeah you got more 506 00:20:13,390 --> 00:20:11,900 well maybe we'll show more later for 507 00:20:16,210 --> 00:20:13,400 that global perspective now we'll move 508 00:20:18,400 --> 00:20:16,220 to we're going to start globally in a 509 00:20:21,690 --> 00:20:18,410 number of ways locally in space and then 510 00:20:24,430 --> 00:20:21,700 globally in time and I want to I want to 511 00:20:26,200 --> 00:20:24,440 ask the next panelist David Grinspoon to 512 00:20:28,110 --> 00:20:26,210 to talk he's going to talk about the 513 00:20:32,290 --> 00:20:28,120 challenge of now how to be a self-aware 514 00:20:34,690 --> 00:20:32,300 geological force and David actually this 515 00:20:38,170 --> 00:20:34,700 PhD is university Arizona which we 516 00:20:41,440 --> 00:20:38,180 forgive him for and in planetary science 517 00:20:43,180 --> 00:20:41,450 and then was in Colorado when he was 518 00:20:45,880 --> 00:20:43,190 actually the curator of planetary 519 00:20:49,150 --> 00:20:45,890 science at the Museum there and then was 520 00:20:51,760 --> 00:20:49,160 the inaugural chair in astrobiology at 521 00:20:54,250 --> 00:20:51,770 the Library of Congress and and is now 522 00:20:57,400 --> 00:20:54,260 at the Planetary Science Institute so 523 00:21:01,090 --> 00:20:57,410 David thank you very much thank you all 524 00:21:06,160 --> 00:21:01,100 for coming out this evening as mentioned 525 00:21:09,850 --> 00:21:06,170 I'm an astrobiologist I I mostly work in 526 00:21:12,070 --> 00:21:09,860 offices so I don't have pictures of what 527 00:21:15,970 --> 00:21:12,080 I do and where I work that anywhere near 528 00:21:18,990 --> 00:21:15,980 as cool as John's so no one does yeah 529 00:21:22,960 --> 00:21:19,000 exactly so so I'm not going to try to 530 00:21:25,180 --> 00:21:22,970 follow that with any visual so I'm just 531 00:21:26,890 --> 00:21:25,190 going to sit here and talk for a few 532 00:21:31,480 --> 00:21:26,900 minutes and share a few thoughts with 533 00:21:35,290 --> 00:21:31,490 you what I do for my research is I model 534 00:21:38,470 --> 00:21:35,300 climate change on other planets and try 535 00:21:41,080 --> 00:21:38,480 to understand the possible locations for 536 00:21:44,260 --> 00:21:41,090 life in the universe but I spent a lot 537 00:21:46,480 --> 00:21:44,270 of time over the last few years studying 538 00:21:49,690 --> 00:21:46,490 and writing about the human presence on 539 00:21:53,500 --> 00:21:49,700 earth from the viewpoint of astrobiology 540 00:21:56,580 --> 00:21:53,510 and asking the question given all the 541 00:21:59,200 --> 00:21:56,590 radical changes and catastrophes and 542 00:22:01,080 --> 00:21:59,210 transformations that the earth has been 543 00:22:04,080 --> 00:22:01,090 through what is really different about 544 00:22:07,240 --> 00:22:04,090 these changes that are happening now and 545 00:22:09,520 --> 00:22:07,250 I think that plausibly the answer is or 546 00:22:13,240 --> 00:22:09,530 one way to frame the answer is that 547 00:22:13,970 --> 00:22:13,250 we're seeing and manifesting the advent 548 00:22:17,900 --> 00:22:13,980 of self 549 00:22:20,030 --> 00:22:17,910 we're geological change a geological 550 00:22:22,700 --> 00:22:20,040 force that is coming to realize that it 551 00:22:26,390 --> 00:22:22,710 is a geological force that's something 552 00:22:30,110 --> 00:22:26,400 new on this planet realizing that we are 553 00:22:32,030 --> 00:22:30,120 a geological force so it certainly is 554 00:22:33,770 --> 00:22:32,040 clear as John was saying that our planet 555 00:22:36,680 --> 00:22:33,780 is going through some kind of radical 556 00:22:39,260 --> 00:22:36,690 transformation now let's go back to this 557 00:22:40,460 --> 00:22:39,270 view of these these aliens that John was 558 00:22:42,110 --> 00:22:40,470 talking about who are zooming in on 559 00:22:43,940 --> 00:22:42,120 earth but for a second rather than 560 00:22:44,830 --> 00:22:43,950 zooming in in space because zoom over 561 00:22:48,049 --> 00:22:44,840 time 562 00:22:51,320 --> 00:22:48,059 imagine you were a very patient alien 563 00:22:52,730 --> 00:22:51,330 with a different kind of time sense so 564 00:22:55,010 --> 00:22:52,740 you were watching the earth over 565 00:22:58,490 --> 00:22:55,020 billions of years and noticing its 566 00:22:59,870 --> 00:22:58,500 changes what would you see well you 567 00:23:01,640 --> 00:22:59,880 would have seen a lot happen a lot of 568 00:23:03,289 --> 00:23:01,650 changes on the planet gone through 569 00:23:06,560 --> 00:23:03,299 different phases you would have seen the 570 00:23:08,289 --> 00:23:06,570 continents drifting around through plate 571 00:23:10,850 --> 00:23:08,299 tectonics and continental drift 572 00:23:12,590 --> 00:23:10,860 coalescing into super continents and 573 00:23:16,909 --> 00:23:12,600 breaking apart again you would have seen 574 00:23:18,950 --> 00:23:16,919 climate changing ice ages hothouse ages 575 00:23:24,669 --> 00:23:18,960 the polar caps growing and shrinking 576 00:23:32,720 --> 00:23:28,360 to this patient attentive observe 577 00:23:34,610 --> 00:23:32,730 observant alien very recently you would 578 00:23:35,990 --> 00:23:34,620 notice something striking that you 579 00:23:38,390 --> 00:23:36,000 hadn't noticed over all these billions 580 00:23:41,120 --> 00:23:38,400 of years a whole series of brand-new 581 00:23:44,330 --> 00:23:41,130 things happening most noticeably 582 00:23:46,669 --> 00:23:44,340 probably the night side suddenly lights 583 00:23:48,500 --> 00:23:46,679 up starting in a few dots and some 584 00:23:52,960 --> 00:23:48,510 coastal areas and then spreading in webs 585 00:23:55,580 --> 00:23:52,970 and then filling much of the nighttime 586 00:23:57,409 --> 00:23:55,590 continents at the same time all these 587 00:23:59,210 --> 00:23:57,419 other changes start happening changes in 588 00:24:02,150 --> 00:23:59,220 the composition of the atmosphere in the 589 00:24:04,970 --> 00:24:02,160 ocean changes in patterns of the land 590 00:24:08,210 --> 00:24:04,980 surface strange new geometry squares and 591 00:24:10,669 --> 00:24:08,220 circles and even the hydrological cycle 592 00:24:13,430 --> 00:24:10,679 of the planet as Lorenz mentioned really 593 00:24:15,020 --> 00:24:13,440 suddenly being altered and then these 594 00:24:18,289 --> 00:24:15,030 linear clouds start streaking through 595 00:24:20,780 --> 00:24:18,299 the skies and then very recently in the 596 00:24:23,659 --> 00:24:20,790 last 60 years which is a blink in the 597 00:24:26,139 --> 00:24:23,669 eye of the planet little bits of the 598 00:24:28,479 --> 00:24:26,149 planet start launching into space 599 00:24:30,489 --> 00:24:28,489 which is a really strange new thing what 600 00:24:32,439 --> 00:24:30,499 what a strange way for a planet to 601 00:24:33,999 --> 00:24:32,449 behave everything four billion years ago 602 00:24:35,589 --> 00:24:34,009 fell from space and now all of a sudden 603 00:24:37,179 --> 00:24:35,599 some tiny little bits of it are 604 00:24:38,589 --> 00:24:37,189 launching back into space circling 605 00:24:40,809 --> 00:24:38,599 around the planet visiting the 606 00:24:43,749 --> 00:24:40,819 neighbours sending radio signals back so 607 00:24:45,879 --> 00:24:43,759 it's clear to you the attentive patient 608 00:24:48,609 --> 00:24:45,889 alien that something radical and new is 609 00:24:51,219 --> 00:24:48,619 happening on this planet what's going on 610 00:24:53,469 --> 00:24:51,229 so we have a species that is both 611 00:24:55,719 --> 00:24:53,479 changing the planet and also studying 612 00:24:57,849 --> 00:24:55,729 the planet trying to understand how it 613 00:25:00,789 --> 00:24:57,859 works and trying to understand our own 614 00:25:03,339 --> 00:25:00,799 role within it but when we study the 615 00:25:05,259 --> 00:25:03,349 long history of Earth one thing we 616 00:25:06,519 --> 00:25:05,269 quickly learn is that we are not the 617 00:25:09,009 --> 00:25:06,529 first species to come along and 618 00:25:11,379 --> 00:25:09,019 radically change the planet that has 619 00:25:12,939 --> 00:25:11,389 happened before that biology has changed 620 00:25:13,929 --> 00:25:12,949 earth for instance two and a half 621 00:25:17,579 --> 00:25:13,939 billion years ago 622 00:25:19,829 --> 00:25:17,589 these little bacteria the cyanobacteria 623 00:25:22,089 --> 00:25:19,839 discovered a new energy source and 624 00:25:22,629 --> 00:25:22,099 realized that they could exploit it like 625 00:25:24,969 --> 00:25:22,639 crazy 626 00:25:26,709 --> 00:25:24,979 and in the process polluted the entire 627 00:25:29,559 --> 00:25:26,719 atmosphere and caused a climate 628 00:25:31,479 --> 00:25:29,569 catastrophe sound familiar 629 00:25:33,609 --> 00:25:31,489 but the cyanobacteria did that when they 630 00:25:34,959 --> 00:25:33,619 discovered solar energy photosynthesis 631 00:25:37,239 --> 00:25:34,969 and they polluted the atmosphere with 632 00:25:40,119 --> 00:25:37,249 oxygen which at that time was a was a 633 00:25:44,249 --> 00:25:40,129 poison and caused caused a horrible 634 00:25:47,169 --> 00:25:44,259 climate change so so we're not the first 635 00:25:48,309 --> 00:25:47,179 to do some of these things what is 636 00:25:50,409 --> 00:25:48,319 really different about what is happening 637 00:25:52,359 --> 00:25:50,419 to the planet now it's not new for 638 00:25:55,779 --> 00:25:52,369 biological processes to radically change 639 00:26:00,729 --> 00:25:55,789 the planet but it is new for cognitive 640 00:26:04,209 --> 00:26:00,739 processes to change the planet mental 641 00:26:06,899 --> 00:26:04,219 processes enabled with technology the 642 00:26:09,129 --> 00:26:06,909 ability to manipulate the environment 643 00:26:12,129 --> 00:26:09,139 feeding back and causing global change 644 00:26:14,619 --> 00:26:12,139 that's something brand new earth gave 645 00:26:17,109 --> 00:26:14,629 rise to biology which somehow gave rise 646 00:26:20,129 --> 00:26:17,119 to these mental processes which are now 647 00:26:23,589 --> 00:26:20,139 feeding back and changing the planet a 648 00:26:26,379 --> 00:26:23,599 planet with brains fancy that 649 00:26:29,799 --> 00:26:26,389 not only brains but limbs with which to 650 00:26:31,209 --> 00:26:29,809 manipulate and build tools we're just 651 00:26:33,899 --> 00:26:31,219 beginning to come to grips with this 652 00:26:36,969 --> 00:26:33,909 strange new development like like a 653 00:26:38,619 --> 00:26:36,979 infant staring at its hands we're 654 00:26:39,640 --> 00:26:38,629 becoming aware of our powers but we 655 00:26:42,880 --> 00:26:39,650 haven't yet gained 656 00:26:44,980 --> 00:26:42,890 troll over them how can we change that 657 00:26:48,430 --> 00:26:44,990 maybe by understanding more fully what's 658 00:26:50,170 --> 00:26:48,440 what's going on here this cognitive 659 00:26:52,360 --> 00:26:50,180 influence on the planet I think there's 660 00:26:56,890 --> 00:26:52,370 two categories that we can break that 661 00:26:58,980 --> 00:26:56,900 into two ways this can unfold two kinds 662 00:27:02,560 --> 00:26:58,990 of cognitively driven planetary change 663 00:27:05,050 --> 00:27:02,570 inadvertent changes and intentional 664 00:27:08,170 --> 00:27:05,060 changes and I think we have examples of 665 00:27:09,790 --> 00:27:08,180 both the obvious inadvertent example is 666 00:27:12,940 --> 00:27:09,800 that we decided fossil fuels would be a 667 00:27:15,100 --> 00:27:12,950 great source of energy they were but 668 00:27:17,580 --> 00:27:15,110 without realizing it we started changing 669 00:27:20,740 --> 00:27:17,590 the atmosphere putting carbon dioxide 670 00:27:23,980 --> 00:27:20,750 emissions and causing what we're now 671 00:27:26,530 --> 00:27:23,990 realizing is a climate crisis completely 672 00:27:28,510 --> 00:27:26,540 unintentional when we started an 673 00:27:30,910 --> 00:27:28,520 unintended consequence another example 674 00:27:32,740 --> 00:27:30,920 of an unintended consequences the ozone 675 00:27:35,980 --> 00:27:32,750 hole which you've heard about in the 676 00:27:38,980 --> 00:27:35,990 1970s we realized that this this very 677 00:27:41,020 --> 00:27:38,990 crucial life-support system of our 678 00:27:42,910 --> 00:27:41,030 planet the the ozone layer up in the 679 00:27:44,310 --> 00:27:42,920 stratosphere was being affected by these 680 00:27:46,780 --> 00:27:44,320 chemicals these CFCs chlorofluorocarbons 681 00:27:48,790 --> 00:27:46,790 which we thought were perfectly safe and 682 00:27:50,800 --> 00:27:48,800 non-toxic because they are down here 683 00:27:52,540 --> 00:27:50,810 where we live in in the troposphere but 684 00:27:55,870 --> 00:27:52,550 when they drift up into the stratosphere 685 00:27:58,120 --> 00:27:55,880 they start interacting with under the 686 00:28:00,070 --> 00:27:58,130 influence of ultraviolet light with the 687 00:28:03,970 --> 00:28:00,080 oxygen compounds in destroying the ozone 688 00:28:05,620 --> 00:28:03,980 this was a real crisis but we responded 689 00:28:08,020 --> 00:28:05,630 to this crisis in an interesting way it 690 00:28:10,210 --> 00:28:08,030 definitely started off as an inadvertent 691 00:28:12,000 --> 00:28:10,220 accidental change but then something 692 00:28:14,710 --> 00:28:12,010 interesting happened there were global 693 00:28:16,990 --> 00:28:14,720 discussions arguments at first about 694 00:28:19,300 --> 00:28:17,000 this the scientists raised the alarm 695 00:28:20,440 --> 00:28:19,310 there was denial there you know people 696 00:28:22,900 --> 00:28:20,450 didn't want to deal with it but 697 00:28:25,240 --> 00:28:22,910 ultimately it became very clear that 698 00:28:27,730 --> 00:28:25,250 this was the truth this was happening 699 00:28:30,430 --> 00:28:27,740 and the truth won out in this case they 700 00:28:34,600 --> 00:28:30,440 were global agreements made at a 701 00:28:36,730 --> 00:28:34,610 Montreal Protocol as it was was the key 702 00:28:38,290 --> 00:28:36,740 one and and we changed our behavior the 703 00:28:40,800 --> 00:28:38,300 companies phased out those chemicals 704 00:28:44,020 --> 00:28:40,810 phased in new chemicals so that's a 705 00:28:46,540 --> 00:28:44,030 genuine example of an intentional global 706 00:28:48,250 --> 00:28:46,550 change in response to a problem it's a 707 00:28:51,400 --> 00:28:48,260 proof of concept it shows that we're 708 00:28:53,410 --> 00:28:51,410 capable of a another way of responding 709 00:28:55,210 --> 00:28:53,420 to global problems it doesn't mean that 710 00:28:57,250 --> 00:28:55,220 it's inevitable or easy but it shows 711 00:28:59,650 --> 00:28:57,260 it's possible so one way of looking at 712 00:29:01,570 --> 00:28:59,660 the challenge of now is that we have to 713 00:29:03,340 --> 00:29:01,580 shift our global influence more and more 714 00:29:05,470 --> 00:29:03,350 to the intentional side of things and 715 00:29:08,890 --> 00:29:05,480 away from the accidental inadvertent 716 00:29:10,810 --> 00:29:08,900 change changes we have become planet 717 00:29:12,490 --> 00:29:10,820 changers and I don't believe that we 718 00:29:14,860 --> 00:29:12,500 have the choice anymore to not be 719 00:29:17,470 --> 00:29:14,870 planted changers so our challenge is to 720 00:29:19,990 --> 00:29:17,480 learn how to do it well learn how to 721 00:29:22,390 --> 00:29:20,000 gracefully integrate our activities with 722 00:29:24,220 --> 00:29:22,400 the great natural cycles of the world 723 00:29:27,700 --> 00:29:24,230 and learn to be a constructive rather 724 00:29:31,180 --> 00:29:27,710 than a destructive force when we study 725 00:29:33,400 --> 00:29:31,190 the deep history of our species we learn 726 00:29:35,680 --> 00:29:33,410 that we've responded to existential 727 00:29:37,750 --> 00:29:35,690 threats before many times by reinventing 728 00:29:40,300 --> 00:29:37,760 ourselves and redefining our 729 00:29:43,030 --> 00:29:40,310 relationship with nature in response to 730 00:29:45,450 --> 00:29:43,040 climate threats this has happened before 731 00:29:47,950 --> 00:29:45,460 now we need to do do this again and 732 00:29:51,640 --> 00:29:47,960 after we get over our current climate 733 00:29:53,200 --> 00:29:51,650 vandalism and destruction of species we 734 00:29:56,440 --> 00:29:53,210 will have many opportunities to play a 735 00:29:58,900 --> 00:29:56,450 constructive role on the planet after we 736 00:30:01,630 --> 00:29:58,910 stop threatening a mass extinction we 737 00:30:03,700 --> 00:30:01,640 can prevent the next mass extinction we 738 00:30:05,950 --> 00:30:03,710 can stop that next dangerous asteroid 739 00:30:08,410 --> 00:30:05,960 that is heading our way and ultimately 740 00:30:10,120 --> 00:30:08,420 we can prevent the next ice age and 741 00:30:12,040 --> 00:30:10,130 other dangerous climate changes which on 742 00:30:14,770 --> 00:30:12,050 a long enough time scale will happen 743 00:30:16,720 --> 00:30:14,780 left to its own with the planet left to 744 00:30:19,030 --> 00:30:16,730 its own devices I think we're just 745 00:30:20,710 --> 00:30:19,040 getting started on this planet we are 746 00:30:22,870 --> 00:30:20,720 facing some huge challenges in the 21st 747 00:30:26,530 --> 00:30:22,880 century but remember there will be a 748 00:30:28,900 --> 00:30:26,540 22nd and a 23rd century we will soon 749 00:30:31,960 --> 00:30:28,910 have a stabilized global population and 750 00:30:33,970 --> 00:30:31,970 will soon be off of fossil fuels the 751 00:30:37,810 --> 00:30:33,980 transition is painfully slow right now 752 00:30:39,010 --> 00:30:37,820 but it is also inevitable and I think 753 00:30:40,960 --> 00:30:39,020 soon we'll be in the process of 754 00:30:43,570 --> 00:30:40,970 repairing the damage that we're doing 755 00:30:45,280 --> 00:30:43,580 now and that in the long run we can save 756 00:30:48,070 --> 00:30:45,290 many more species than we're currently 757 00:30:51,820 --> 00:30:48,080 threatening we've got a lot to learn 758 00:30:53,920 --> 00:30:51,830 about the planet and about ourselves but 759 00:30:56,500 --> 00:30:53,930 eventually we may be the best thing that 760 00:31:03,390 --> 00:30:56,510 ever happened to planet Earth thank you 761 00:31:05,920 --> 00:31:03,400 [Applause] 762 00:31:07,630 --> 00:31:05,930 well I told you we get more optimistic 763 00:31:12,520 --> 00:31:07,640 although I hope to bring us back at at 764 00:31:14,860 --> 00:31:12,530 some point well you can't help but 765 00:31:16,720 --> 00:31:14,870 notice that we segregated the panel and 766 00:31:19,180 --> 00:31:16,730 we didn't do it intentionally but I 767 00:31:23,080 --> 00:31:19,190 wanted to go from this side which is 768 00:31:26,800 --> 00:31:23,090 sort of the I call the vague side to 769 00:31:30,130 --> 00:31:26,810 this side with a can-do side and and I 770 00:31:32,770 --> 00:31:30,140 want to I want to introduce next Jane 771 00:31:36,670 --> 00:31:32,780 long who's going to talk about 772 00:31:39,100 --> 00:31:36,680 geoengineering and and Jane is an 773 00:31:41,070 --> 00:31:39,110 engineer and who did her PhD in at 774 00:31:43,030 --> 00:31:41,080 Berkeley in civil engineering and 775 00:31:45,030 --> 00:31:43,040 geotechnical engineering which I didn't 776 00:31:49,530 --> 00:31:45,040 know at the time was a was a field in 777 00:31:52,570 --> 00:31:49,540 hydrology and has moved primarily around 778 00:31:54,790 --> 00:31:52,580 well at Lawrence Berkeley Lab and then 779 00:31:56,440 --> 00:31:54,800 was being at University of Nevada at 780 00:31:58,510 --> 00:31:56,450 Reno and then went back to Lawrence 781 00:32:00,130 --> 00:31:58,520 Livermore National Laboratory which she 782 00:32:02,890 --> 00:32:00,140 worked on energy in the environment and 783 00:32:05,980 --> 00:32:02,900 now has retired from that so that she 784 00:32:08,530 --> 00:32:05,990 can do science and so she'll talk about 785 00:32:14,710 --> 00:32:08,540 geoengineering well I I just thought I 786 00:32:16,960 --> 00:32:14,720 forgot my hat thank for you 787 00:32:19,270 --> 00:32:16,970 so geotechnical engineering actually 788 00:32:21,760 --> 00:32:19,280 used to mean our geoengineering used to 789 00:32:23,440 --> 00:32:21,770 used to have the meaning of engineers 790 00:32:27,450 --> 00:32:23,450 who dealt with things at the surface of 791 00:32:30,490 --> 00:32:27,460 the earth so foundations and dams and 792 00:32:32,440 --> 00:32:30,500 reservoir engineering and whatnot but in 793 00:32:34,210 --> 00:32:32,450 the last decade or so people have begun 794 00:32:37,600 --> 00:32:34,220 to use that term to mean actually 795 00:32:39,970 --> 00:32:37,610 engineering or modifying because the 796 00:32:43,630 --> 00:32:39,980 concept of strict engineering of the 797 00:32:45,700 --> 00:32:43,640 climate is seems to be elusive but but 798 00:32:48,820 --> 00:32:45,710 intervening in some way in the climate 799 00:32:51,730 --> 00:32:48,830 and of course as you've been hearing a 800 00:32:55,570 --> 00:32:51,740 bit about our our problems on the earth 801 00:32:58,420 --> 00:32:55,580 I'd just like to give you a little bit 802 00:33:00,340 --> 00:32:58,430 more detailed context so that you you 803 00:33:04,180 --> 00:33:00,350 understand some of the motivation a 804 00:33:05,980 --> 00:33:04,190 little bit so Lawrence mentioned the 805 00:33:08,110 --> 00:33:05,990 persistence of carbon dioxide in the 806 00:33:10,630 --> 00:33:08,120 atmosphere for a thousand years how many 807 00:33:14,440 --> 00:33:10,640 people in the audience really understand 808 00:33:16,270 --> 00:33:14,450 that when we emit carbon dioxide into 809 00:33:17,740 --> 00:33:16,280 the atmosphere that we've bought that 810 00:33:19,390 --> 00:33:17,750 carbon dioxide it's going to be there 811 00:33:22,930 --> 00:33:19,400 for a thousand years how many people 812 00:33:25,090 --> 00:33:22,940 really got that so this is a really good 813 00:33:27,010 --> 00:33:25,100 audience I have to tell you usually if I 814 00:33:30,610 --> 00:33:27,020 ask for that I get about three hands 815 00:33:32,410 --> 00:33:30,620 even at graduate students at MIT this is 816 00:33:35,380 --> 00:33:32,420 probably the most important fact about 817 00:33:37,270 --> 00:33:35,390 climate change that that is difficult 818 00:33:38,980 --> 00:33:37,280 for people to understand if achill for 819 00:33:40,990 --> 00:33:38,990 the public to grasp this isn't like the 820 00:33:44,080 --> 00:33:41,000 pollution problems that we've had other 821 00:33:46,060 --> 00:33:44,090 places where if you put contamination 822 00:33:47,680 --> 00:33:46,070 into a river and then you stop doing it 823 00:33:49,540 --> 00:33:47,690 the river gets cleaned up and problem 824 00:33:50,920 --> 00:33:49,550 solved we're done you know but this 825 00:33:54,190 --> 00:33:50,930 isn't like that whatever 826 00:33:56,290 --> 00:33:54,200 until we stop emitting problems just 827 00:33:59,320 --> 00:33:56,300 going to get worse and so we have to go 828 00:34:03,040 --> 00:33:59,330 to zero really a relatively close to 829 00:34:07,150 --> 00:34:03,050 zero to stop the climate change forcing 830 00:34:09,930 --> 00:34:07,160 from increasing we emit now about 40 831 00:34:14,740 --> 00:34:09,940 Giga tons of carbon dioxide a year and 832 00:34:17,350 --> 00:34:14,750 that that that 40 tonnes that 40 Giga 833 00:34:19,030 --> 00:34:17,360 tons is going into the ocean about half 834 00:34:25,630 --> 00:34:19,040 of it and the other half staying in the 835 00:34:28,139 --> 00:34:25,640 atmosphere even if we eliminated the the 836 00:34:30,669 --> 00:34:28,149 extra carbon dioxide in the atmosphere 837 00:34:32,409 --> 00:34:30,679 instantaneously all the stuff we put in 838 00:34:34,090 --> 00:34:32,419 the ocean would come back out or half of 839 00:34:36,040 --> 00:34:34,100 it would come back out so we have a 840 00:34:37,960 --> 00:34:36,050 really difficult time bringing that 841 00:34:44,320 --> 00:34:37,970 atmospheric concentration back to a 842 00:34:50,470 --> 00:34:44,330 pre-industrial area at a range and if we 843 00:34:53,440 --> 00:34:50,480 for example needed to try to do that if 844 00:34:54,669 --> 00:34:53,450 we look at the the IPCC the 845 00:34:57,070 --> 00:34:54,679 International Panel on Climate Change 846 00:35:00,220 --> 00:34:57,080 model results of what is going to happen 847 00:35:02,620 --> 00:35:00,230 to climate for various mitigation 848 00:35:06,880 --> 00:35:02,630 scenarios if we follow the Paris 849 00:35:12,340 --> 00:35:06,890 agreements to say about 1930s re 2030 850 00:35:14,680 --> 00:35:12,350 and then at that point we started taking 851 00:35:17,800 --> 00:35:14,690 carbon dioxide out of the atmosphere we 852 00:35:19,630 --> 00:35:17,810 would have to take out about 10 Giga 853 00:35:21,380 --> 00:35:19,640 tons a year so we'd have to go to zero 854 00:35:23,660 --> 00:35:21,390 and then take 855 00:35:26,930 --> 00:35:23,670 out half as much as we've been putting 856 00:35:28,580 --> 00:35:26,940 in more or less every year in order 857 00:35:30,290 --> 00:35:28,590 sorry not quite half sorry about a 858 00:35:32,840 --> 00:35:30,300 quarter of what we've been putting in 859 00:35:36,920 --> 00:35:32,850 every year in order to have a 50% chance 860 00:35:40,790 --> 00:35:36,930 of staying below 2 degrees so it is it's 861 00:35:44,270 --> 00:35:40,800 really a huge lift that we face in 862 00:35:47,150 --> 00:35:44,280 correcting this huge perturbation that 863 00:35:49,520 --> 00:35:47,160 we've made to our atmosphere and that 864 00:35:51,740 --> 00:35:49,530 means that it's very likely that we're 865 00:35:53,810 --> 00:35:51,750 going to be experiencing some pretty 866 00:35:56,900 --> 00:35:53,820 major effects some large temperature 867 00:35:59,000 --> 00:35:56,910 changes and climate weirding if you like 868 00:36:01,040 --> 00:35:59,010 of what we see what we see 869 00:36:02,540 --> 00:36:01,050 so people have begun to think about what 870 00:36:05,690 --> 00:36:02,550 could you do about it 871 00:36:08,120 --> 00:36:05,700 human ingenuity and Genuity is pretty 872 00:36:09,650 --> 00:36:08,130 amazing and this is a field where only a 873 00:36:12,410 --> 00:36:09,660 few people have started to think about 874 00:36:14,810 --> 00:36:12,420 it it's very very important I think now 875 00:36:18,110 --> 00:36:14,820 for more people to think about how we 876 00:36:20,570 --> 00:36:18,120 might deal with this major perturbation 877 00:36:22,430 --> 00:36:20,580 so that we have a better chance for 878 00:36:24,890 --> 00:36:22,440 survival and that our children have a 879 00:36:29,320 --> 00:36:24,900 better chance and in my case I'm happy 880 00:36:31,580 --> 00:36:29,330 to say my grandchildren but the the the 881 00:36:35,270 --> 00:36:31,590 two kinds of things that people have 882 00:36:39,110 --> 00:36:35,280 thought about doing so far predominantly 883 00:36:41,540 --> 00:36:39,120 are one is to mimic volcanic eruptions 884 00:36:43,700 --> 00:36:41,550 which we know put sulphur dioxide into 885 00:36:45,620 --> 00:36:43,710 the stratosphere and have been shown to 886 00:36:48,110 --> 00:36:45,630 cool the earth for several degrees for a 887 00:36:50,780 --> 00:36:48,120 year so after the eruption so we know 888 00:36:52,790 --> 00:36:50,790 that if we could inject particles that 889 00:36:54,620 --> 00:36:52,800 would reflect radiation back into space 890 00:36:57,410 --> 00:36:54,630 that we could change the radiation 891 00:37:01,910 --> 00:36:57,420 balance of the earth and cool cool the 892 00:37:04,070 --> 00:37:01,920 planet and that has no effect on things 893 00:37:07,850 --> 00:37:04,080 like ocean acidification because that 894 00:37:12,890 --> 00:37:07,860 co2 is still in in the atmosphere so 895 00:37:16,700 --> 00:37:12,900 what it's doing is it's taking a some 896 00:37:19,790 --> 00:37:16,710 unknown or risky situation caused by our 897 00:37:23,090 --> 00:37:19,800 carbon dioxide emissions and adding on 898 00:37:25,010 --> 00:37:23,100 to that a perturbation that is different 899 00:37:27,320 --> 00:37:25,020 than removing the carbon dioxide it's 900 00:37:30,040 --> 00:37:27,330 changing the radiation balance so we 901 00:37:33,530 --> 00:37:30,050 would enter kind of an unknown state 902 00:37:35,120 --> 00:37:33,540 model results show that it would improve 903 00:37:37,820 --> 00:37:35,130 climate pretty much 904 00:37:39,980 --> 00:37:37,830 everywhere but our instinct tells us 905 00:37:41,750 --> 00:37:39,990 something might go wrong and usually 906 00:37:43,190 --> 00:37:41,760 when I'm giving a talk about this the 907 00:37:45,080 --> 00:37:43,200 microphone goes wrong are the 908 00:37:47,720 --> 00:37:45,090 temperatures too hot or you know and 909 00:37:49,430 --> 00:37:47,730 things like that and it's pretty clear 910 00:37:51,770 --> 00:37:49,440 that we have a very hard time 911 00:37:55,400 --> 00:37:51,780 controlling all unintended consequences 912 00:37:58,070 --> 00:37:55,410 of this so it really is going to be a 913 00:38:01,820 --> 00:37:58,080 very difficult decision to do something 914 00:38:03,860 --> 00:38:01,830 like this and what we what we know 915 00:38:05,660 --> 00:38:03,870 though if you think about it is we're 916 00:38:08,060 --> 00:38:05,670 not making a decision we would not be 917 00:38:10,820 --> 00:38:08,070 making a decision to reflect radiation 918 00:38:13,700 --> 00:38:10,830 in the situation that we're in right now 919 00:38:15,470 --> 00:38:13,710 where it isn't this situation it isn't 920 00:38:17,450 --> 00:38:15,480 this climate that we're experiencing now 921 00:38:19,910 --> 00:38:17,460 that we want to change it's going to be 922 00:38:22,670 --> 00:38:19,920 a risk risk decision the risk of doing 923 00:38:25,730 --> 00:38:22,680 nothing versus the risk of trying to 924 00:38:30,770 --> 00:38:25,740 change the radiation balance and that 925 00:38:32,780 --> 00:38:30,780 has that has a very different flavor to 926 00:38:35,000 --> 00:38:32,790 it and it is going to be a very new 927 00:38:38,890 --> 00:38:35,010 ground for people to try to understand 928 00:38:42,500 --> 00:38:38,900 that risk risk type decision we also 929 00:38:44,930 --> 00:38:42,510 know that once we do this if we ever 930 00:38:47,960 --> 00:38:44,940 stopped that the temperature would go 931 00:38:50,780 --> 00:38:47,970 back to the path that was on before we 932 00:38:53,600 --> 00:38:50,790 started reflecting radiation and make a 933 00:38:55,160 --> 00:38:53,610 very sudden increase in temperatures so 934 00:38:56,360 --> 00:38:55,170 we know that it's not something we want 935 00:38:58,040 --> 00:38:56,370 to do all the time 936 00:39:00,380 --> 00:38:58,050 forever and ever we don't want to have 937 00:39:01,850 --> 00:39:00,390 to commit to that and therefore the 938 00:39:04,430 --> 00:39:01,860 thing that we really need to think about 939 00:39:06,530 --> 00:39:04,440 is trying to figure out how to get that 940 00:39:08,710 --> 00:39:06,540 carbon dioxide out of the atmosphere as 941 00:39:11,030 --> 00:39:08,720 quickly as we can and put it somewhere 942 00:39:13,550 --> 00:39:11,040 those techniques are called carbon 943 00:39:16,970 --> 00:39:13,560 dioxide removal techniques and they are 944 00:39:20,240 --> 00:39:16,980 painfully slow very expensive and will 945 00:39:23,690 --> 00:39:20,250 be very very difficult so the idea that 946 00:39:25,700 --> 00:39:23,700 we would use a solar radiation 947 00:39:27,290 --> 00:39:25,710 management type technology for some 948 00:39:29,720 --> 00:39:27,300 period of time while we got our act 949 00:39:31,820 --> 00:39:29,730 together to figure out how to bring the 950 00:39:34,340 --> 00:39:31,830 atmosphere back to a safer situation is 951 00:39:37,700 --> 00:39:34,350 a one that people have only begun to 952 00:39:40,090 --> 00:39:37,710 think about the strategic use of these 953 00:39:42,890 --> 00:39:40,100 technologies to manage our climate is 954 00:39:45,320 --> 00:39:42,900 something that needs a lot more work and 955 00:39:47,680 --> 00:39:45,330 a lot more research and this kind of 956 00:39:49,050 --> 00:39:47,690 research needs to be done in a way that 957 00:39:50,220 --> 00:39:49,060 isn't the 958 00:39:52,720 --> 00:39:50,230 [Music] 959 00:39:54,430 --> 00:39:52,730 academia is currently configured to do 960 00:39:57,250 --> 00:39:54,440 research for example or even national 961 00:39:59,530 --> 00:39:57,260 labs anymore we this needs to be a kind 962 00:40:01,510 --> 00:39:59,540 of research program which is systematic 963 00:40:02,890 --> 00:40:01,520 research probably much more akin to the 964 00:40:05,319 --> 00:40:02,900 kinds of things that we're done at NASA 965 00:40:07,240 --> 00:40:05,329 for example in programmatic research 966 00:40:10,109 --> 00:40:07,250 where we think about what the whole 967 00:40:11,980 --> 00:40:10,119 system issue is and assign people to 968 00:40:14,740 --> 00:40:11,990 investigate the components of that 969 00:40:17,079 --> 00:40:14,750 system and how they interact this is not 970 00:40:19,690 --> 00:40:17,089 curiosity driven research this is going 971 00:40:22,060 --> 00:40:19,700 to have to be much more like engineering 972 00:40:25,240 --> 00:40:22,070 research and that hasn't happened yet 973 00:40:27,970 --> 00:40:25,250 either so I think these challenges to 974 00:40:31,030 --> 00:40:27,980 bring about what David has so eloquently 975 00:40:33,069 --> 00:40:31,040 described we do have a few babies 976 00:40:34,329 --> 00:40:33,079 looking at their hands and trying to 977 00:40:36,520 --> 00:40:34,339 figure out what they're doing with it 978 00:40:39,819 --> 00:40:36,530 but nowhere near enough people have 979 00:40:42,700 --> 00:40:39,829 looked at this and I think we're we need 980 00:40:44,200 --> 00:40:42,710 to engage people and how other things 981 00:40:47,500 --> 00:40:44,210 that I just want to say one other thing 982 00:40:50,470 --> 00:40:47,510 about this now stuff you know we have in 983 00:40:52,480 --> 00:40:50,480 the climate community a sense that we 984 00:40:53,980 --> 00:40:52,490 can't tell people how bad this problem 985 00:40:56,620 --> 00:40:53,990 is because they'll lose hope and they 986 00:40:58,839 --> 00:40:56,630 won't do anything I think that we've 987 00:41:01,630 --> 00:40:58,849 done exactly the opposite I think we 988 00:41:03,130 --> 00:41:01,640 have we have papered over how bad this 989 00:41:04,589 --> 00:41:03,140 is so people don't do anything because 990 00:41:08,589 --> 00:41:04,599 they don't think they need to and that 991 00:41:10,960 --> 00:41:08,599 is that is something I think we really 992 00:41:13,120 --> 00:41:10,970 need to start to be more honest and 993 00:41:15,280 --> 00:41:13,130 straightforward about how the magnitude 994 00:41:18,010 --> 00:41:15,290 of the problem we're facing as well as 995 00:41:18,910 --> 00:41:18,020 the magnitude of human ingenuity to do 996 00:41:27,520 --> 00:41:18,920 something about it 997 00:41:32,300 --> 00:41:30,500 Thank You Jane I next want to turn to my 998 00:41:33,890 --> 00:41:32,310 colleague at ASU Hilary Hartnett who's 999 00:41:36,170 --> 00:41:33,900 in the school of Earth and space 1000 00:41:37,550 --> 00:41:36,180 exploration which is the department's 1001 00:41:39,470 --> 00:41:37,560 I'm in as well as the school of 1002 00:41:43,430 --> 00:41:39,480 molecular sciences which in other places 1003 00:41:46,130 --> 00:41:43,440 they call chemistry and she's an 1004 00:41:47,720 --> 00:41:46,140 oceanographer and which is an example of 1005 00:41:50,840 --> 00:41:47,730 the kind of transdisciplinary approach 1006 00:41:53,480 --> 00:41:50,850 that is taken that it's done at ASU I'm 1007 00:41:54,830 --> 00:41:53,490 at one of its great strengths and and 1008 00:41:57,920 --> 00:41:54,840 she did her PhD at University of 1009 00:42:01,750 --> 00:41:57,930 Washington and and then was at Rutgers 1010 00:42:03,620 --> 00:42:01,760 and then came to su and she's a 1011 00:42:05,780 --> 00:42:03,630 biogeochemist which is an interesting 1012 00:42:07,480 --> 00:42:05,790 area and she says basically what that 1013 00:42:10,880 --> 00:42:07,490 means is that she is interested in 1014 00:42:12,500 --> 00:42:10,890 within carbon and water and and and 1015 00:42:14,540 --> 00:42:12,510 wherever you find them she's interested 1016 00:42:17,810 --> 00:42:14,550 in something and she's going to talk 1017 00:42:21,860 --> 00:42:17,820 about the role of universities in 1018 00:42:23,890 --> 00:42:21,870 training planetary managers Thank You 1019 00:42:29,420 --> 00:42:23,900 Lawrence 1020 00:42:31,760 --> 00:42:29,430 and like John I do have a few slides I'm 1021 00:42:34,220 --> 00:42:31,770 really happy to to be going last because 1022 00:42:36,530 --> 00:42:34,230 my fellow panelists have set me up 1023 00:42:40,700 --> 00:42:36,540 beautifully for this so what I'm going 1024 00:42:45,860 --> 00:42:40,710 to describe to you is a new initiative 1025 00:42:47,750 --> 00:42:45,870 at Arizona State where we we wish to 1026 00:42:51,950 --> 00:42:47,760 achieve nothing less than a thriving 1027 00:42:54,170 --> 00:42:51,960 Anthropocene we want to train the next 1028 00:42:57,200 --> 00:42:54,180 generation of planetary stewards or 1029 00:42:58,730 --> 00:42:57,210 managers and this program is called 1030 00:43:00,860 --> 00:42:58,740 planet works I'm the co-director of 1031 00:43:01,970 --> 00:43:00,870 planet works RL who introduced us this 1032 00:43:05,600 --> 00:43:01,980 evening is actually the other 1033 00:43:06,770 --> 00:43:05,610 co-director of planet works and planet 1034 00:43:08,810 --> 00:43:06,780 works with an initiative we think of 1035 00:43:11,870 --> 00:43:08,820 ourselves as a confederation of scholars 1036 00:43:14,000 --> 00:43:11,880 and centers and academic units currently 1037 00:43:16,550 --> 00:43:14,010 at ASU but soon to be beyond our 1038 00:43:19,490 --> 00:43:16,560 University and our goal is to reinvent 1039 00:43:23,090 --> 00:43:19,500 our relationship with planet Earth as we 1040 00:43:25,610 --> 00:43:23,100 enter the Anthropocene and to do that we 1041 00:43:27,410 --> 00:43:25,620 take a systems approach we need to 1042 00:43:30,050 --> 00:43:27,420 understand the past present and future 1043 00:43:33,710 --> 00:43:30,060 of our earth there's a geosciences 1044 00:43:36,080 --> 00:43:33,720 component to that we recognize and begin 1045 00:43:38,790 --> 00:43:36,090 from the premise that humanity is an 1046 00:43:40,230 --> 00:43:38,800 integral part of the Earth System you 1047 00:43:41,970 --> 00:43:40,240 can't think about the earth anymore 1048 00:43:44,730 --> 00:43:41,980 without thinking about how humans 1049 00:43:46,920 --> 00:43:44,740 interact with the planet whether that's 1050 00:43:49,230 --> 00:43:46,930 things we build at the surface like we 1051 00:43:52,470 --> 00:43:49,240 saw in John's pictures or whether that's 1052 00:43:56,070 --> 00:43:52,480 how we change our atmosphere or think 1053 00:43:59,700 --> 00:43:56,080 about changing our atmosphere again the 1054 00:44:03,060 --> 00:43:59,710 Anthropocene is not it's not a problem 1055 00:44:06,270 --> 00:44:03,070 it's not a thing that we can undo it's 1056 00:44:11,220 --> 00:44:06,280 an irreversible evolutionary transition 1057 00:44:12,870 --> 00:44:11,230 in our world right we have entered the 1058 00:44:15,030 --> 00:44:12,880 Anthropocene it is up to us to decide 1059 00:44:19,050 --> 00:44:15,040 what that Africa scene is going to look 1060 00:44:20,670 --> 00:44:19,060 like and the last sort of focus that we 1061 00:44:24,270 --> 00:44:20,680 take in planet works is this idea that 1062 00:44:27,240 --> 00:44:24,280 earth is an intelligently managed design 1063 00:44:29,580 --> 00:44:27,250 space we have this ingenuity that Jane 1064 00:44:32,160 --> 00:44:29,590 talked about we can make conscious 1065 00:44:36,150 --> 00:44:32,170 decisions about what we want our planet 1066 00:44:39,270 --> 00:44:36,160 to look like so we catalyze research 1067 00:44:41,130 --> 00:44:39,280 programs we have a strong element of 1068 00:44:43,500 --> 00:44:41,140 Education in what we do we are 1069 00:44:44,670 --> 00:44:43,510 interested in policy and advocacy and 1070 00:44:48,390 --> 00:44:44,680 those are words that are kind of unusual 1071 00:44:51,390 --> 00:44:48,400 coming from a research scientist but the 1072 00:44:53,580 --> 00:44:51,400 the planet works team is really sure 1073 00:44:56,070 --> 00:44:53,590 that we have to be part of this process 1074 00:44:57,480 --> 00:44:56,080 we can't just sit back and study it and 1075 00:45:01,080 --> 00:44:57,490 write papers about it we have to then 1076 00:45:03,240 --> 00:45:01,090 also put it out there help people to 1077 00:45:05,960 --> 00:45:03,250 think about it build the conversation 1078 00:45:08,490 --> 00:45:05,970 about what the Anthropocene can be like 1079 00:45:13,350 --> 00:45:08,500 so how do we do all this this is this is 1080 00:45:16,040 --> 00:45:13,360 pre grand idea right so we have a sort 1081 00:45:18,450 --> 00:45:16,050 of four aspects of what we think about 1082 00:45:21,150 --> 00:45:18,460 one of them is what we call our Earth's 1083 00:45:23,190 --> 00:45:21,160 intervention collaboratory it's a 1084 00:45:25,860 --> 00:45:23,200 research and development concept where 1085 00:45:28,260 --> 00:45:25,870 we work in teams of scientists and 1086 00:45:31,710 --> 00:45:28,270 engineers and also social scientists and 1087 00:45:34,890 --> 00:45:31,720 people who study law to develop ideas 1088 00:45:36,690 --> 00:45:34,900 about how could we intervene in the 1089 00:45:39,270 --> 00:45:36,700 Earth's climate system right now and I'm 1090 00:45:40,650 --> 00:45:39,280 going to talk about that again another 1091 00:45:41,880 --> 00:45:40,660 element of what we taught what we're 1092 00:45:45,060 --> 00:45:41,890 thinking about is something we call the 1093 00:45:47,400 --> 00:45:45,070 stewardship studio a place literally 1094 00:45:50,070 --> 00:45:47,410 where people can come to learn how to 1095 00:45:52,320 --> 00:45:50,080 think in the system's way to help build 1096 00:45:54,180 --> 00:45:52,330 ideas and think about scenarios 1097 00:45:57,360 --> 00:45:54,190 from what planetary stewardship could 1098 00:46:01,710 --> 00:45:57,370 look like we have a strong education 1099 00:46:03,420 --> 00:46:01,720 component which currently is local 1100 00:46:06,480 --> 00:46:03,430 education in Arizona State but which we 1101 00:46:10,370 --> 00:46:06,490 envision could be mass education taking 1102 00:46:16,980 --> 00:46:13,110 capabilities to take this message very 1103 00:46:20,370 --> 00:46:16,990 very wide and ultimately all of these 1104 00:46:22,380 --> 00:46:20,380 pieces linked to better integrated 1105 00:46:25,680 --> 00:46:22,390 models was how the Earth's system has 1106 00:46:31,380 --> 00:46:25,690 evolved and will evolve and so you can 1107 00:46:33,330 --> 00:46:31,390 see that this is a very much a I'll call 1108 00:46:35,460 --> 00:46:33,340 it a mission driven kind of approach we 1109 00:46:37,980 --> 00:46:35,470 know what we want we want a thriving 1110 00:46:40,380 --> 00:46:37,990 Anthropocene there's basic research that 1111 00:46:42,240 --> 00:46:40,390 goes with this there's applied research 1112 00:46:45,210 --> 00:46:42,250 that goes with this there's learning how 1113 00:46:46,350 --> 00:46:45,220 to talk about this so now I'm going to 1114 00:46:49,860 --> 00:46:46,360 switch gears and I'm going to give you 1115 00:46:52,830 --> 00:46:49,870 an example that that mostly falls into 1116 00:46:55,110 --> 00:46:52,840 the the idea of the earth intervention 1117 00:46:57,720 --> 00:46:55,120 collaboratory but I'm going to put it 1118 00:47:01,710 --> 00:46:57,730 into an educational spin because it 1119 00:47:09,570 --> 00:47:01,720 really did evolve out of it evolved out 1120 00:47:14,850 --> 00:47:09,580 of a class so this is an image of the 1121 00:47:18,450 --> 00:47:14,860 Arctic and here's Greenland North 1122 00:47:21,270 --> 00:47:18,460 America the Russian far north and the 1123 00:47:25,110 --> 00:47:21,280 white that you see is the sea ice 1124 00:47:27,150 --> 00:47:25,120 coverage in September of 2012 this is 1125 00:47:30,330 --> 00:47:27,160 measured with a with a satellite these 1126 00:47:31,470 --> 00:47:30,340 microwave radiation and I don't know how 1127 00:47:34,920 --> 00:47:31,480 well you can see it though there's a 1128 00:47:38,940 --> 00:47:34,930 black line kind of here that black line 1129 00:47:42,630 --> 00:47:38,950 is the average summer time September ice 1130 00:47:44,250 --> 00:47:42,640 extent for the period of 1979 to 2000 so 1131 00:47:47,010 --> 00:47:44,260 the latter part of the 20th century and 1132 00:47:50,130 --> 00:47:47,020 the key thing is that that white that 1133 00:47:52,620 --> 00:47:50,140 you see for September 2012 there's much 1134 00:47:54,930 --> 00:47:52,630 less ice than there ever has been in the 1135 00:47:57,660 --> 00:47:54,940 past and 2012 is a particularly bad year 1136 00:48:00,180 --> 00:47:57,670 but it turns out 2016 is a pretty bad 1137 00:48:00,960 --> 00:48:00,190 year - 2017 is shaping up to be about 1138 00:48:02,850 --> 00:48:00,970 the same 1139 00:48:04,410 --> 00:48:02,860 we have lost your tremendous amount of 1140 00:48:06,960 --> 00:48:04,420 summertime ice 1141 00:48:09,210 --> 00:48:06,970 the Arctic and this ice is important 1142 00:48:10,620 --> 00:48:09,220 because it's white right it's reflective 1143 00:48:13,580 --> 00:48:10,630 and this gets to this idea of the 1144 00:48:16,920 --> 00:48:13,590 radiative budget of the planet our 1145 00:48:18,900 --> 00:48:16,930 climate is carefully balanced between 1146 00:48:20,850 --> 00:48:18,910 how much light comes in how much light 1147 00:48:23,460 --> 00:48:20,860 is reflected back to space due to white 1148 00:48:25,560 --> 00:48:23,470 things like the Arctic sea ice and some 1149 00:48:27,870 --> 00:48:25,570 of that energy which is absorbed by the 1150 00:48:29,580 --> 00:48:27,880 planet and re-radiated and then absorbed 1151 00:48:32,130 --> 00:48:29,590 again by the greenhouse gases that's the 1152 00:48:35,580 --> 00:48:32,140 delicate balance if we lose ice in the 1153 00:48:37,260 --> 00:48:35,590 Arctic the seawater that's revealed it's 1154 00:48:39,570 --> 00:48:37,270 reflect it's not reflected it's black 1155 00:48:42,960 --> 00:48:39,580 and so that's a fundamental change to 1156 00:48:45,090 --> 00:48:42,970 the way the earth absorbs energy so my 1157 00:48:47,480 --> 00:48:45,100 colleague Steve desh who is also the 1158 00:48:49,590 --> 00:48:47,490 chair of the astrobiology conference 1159 00:48:52,200 --> 00:48:49,600 came back from a conference a few years 1160 00:48:55,320 --> 00:48:52,210 ago and he was all he was all head up 1161 00:48:57,750 --> 00:48:55,330 about this problem of climate change and 1162 00:48:59,250 --> 00:48:57,760 sea ice and fundamentally kind of 1163 00:49:05,040 --> 00:48:59,260 stomped around whining away nobody was 1164 00:49:07,320 --> 00:49:05,050 doing anything about this that's fair so 1165 00:49:09,600 --> 00:49:07,330 being academics we decided to teach a 1166 00:49:13,590 --> 00:49:09,610 class basically to talk about this idea 1167 00:49:15,120 --> 00:49:13,600 and so we had seminar class it had 1168 00:49:18,570 --> 00:49:15,130 graduate students had had undergraduates 1169 00:49:21,300 --> 00:49:18,580 it had a couple of faculty and we put 1170 00:49:23,130 --> 00:49:21,310 together some some good minds to think 1171 00:49:25,530 --> 00:49:23,140 about what can we do about ice in the 1172 00:49:27,750 --> 00:49:25,540 Arctic and it manifested itself last 1173 00:49:29,370 --> 00:49:27,760 year in a paper in a journal called 1174 00:49:31,680 --> 00:49:29,380 Earth's future which is published by the 1175 00:49:34,860 --> 00:49:31,690 American Geophysical Union called Arctic 1176 00:49:37,200 --> 00:49:34,870 ice management we've basically put 1177 00:49:38,700 --> 00:49:37,210 together an idea for an actual 1178 00:49:41,670 --> 00:49:38,710 engineering solution that you could 1179 00:49:45,000 --> 00:49:41,680 apply that will help rebuild ice in the 1180 00:49:47,280 --> 00:49:45,010 Arctic in the winter so this data the 1181 00:49:49,410 --> 00:49:47,290 key thing to note is this red line which 1182 00:49:52,710 --> 00:49:49,420 is summertime ice it's been decreasing 1183 00:49:54,180 --> 00:49:52,720 steadily since the 1980s and there are 1184 00:49:59,880 --> 00:49:54,190 predictions that summertime sea ice 1185 00:50:02,310 --> 00:49:59,890 could be gone by 2030 2030 that snot 1186 00:50:04,110 --> 00:50:02,320 that far away we can all think about 1187 00:50:08,010 --> 00:50:04,120 what 2030 might be like it's harder to 1188 00:50:09,920 --> 00:50:08,020 think about 2100 and we're losing sea 1189 00:50:12,840 --> 00:50:09,930 ice because the temperatures are warmer 1190 00:50:15,630 --> 00:50:12,850 so the basic premise behind the ice 1191 00:50:17,430 --> 00:50:15,640 management is that can we take advantage 1192 00:50:18,270 --> 00:50:17,440 of the fact that it's still cold in the 1193 00:50:22,500 --> 00:50:18,280 Arctic in the winter 1194 00:50:25,110 --> 00:50:22,510 can we enhance ice formation it turns 1195 00:50:27,780 --> 00:50:25,120 out ice freezes at the bottom of the sea 1196 00:50:29,580 --> 00:50:27,790 ice and then the heat of fusion has to 1197 00:50:31,290 --> 00:50:29,590 conduct through the ice and that limits 1198 00:50:33,960 --> 00:50:31,300 how thick the ice can grow essentially 1199 00:50:36,990 --> 00:50:33,970 it insulates itself if you could pump 1200 00:50:39,570 --> 00:50:37,000 seawater and here's a very artist's 1201 00:50:41,610 --> 00:50:39,580 rendition of our idea if you could pump 1202 00:50:43,440 --> 00:50:41,620 seawater from below the ice up to the 1203 00:50:47,280 --> 00:50:43,450 top of the ice we have a wind-powered 1204 00:50:49,230 --> 00:50:47,290 pump then you freeze ice at the minus 40 1205 00:50:52,440 --> 00:50:49,240 degrees of the Arctic water temperature 1206 00:50:55,200 --> 00:50:52,450 and our calculation suggested we can 1207 00:50:57,960 --> 00:50:55,210 freeze about almost another extra meter 1208 00:51:00,360 --> 00:50:57,970 of ice each winter if we have enough of 1209 00:51:02,030 --> 00:51:00,370 these pumps this is a very different 1210 00:51:05,610 --> 00:51:02,040 approach to thinking about 1211 00:51:08,570 --> 00:51:05,620 geoengineering this isn't in any of the 1212 00:51:11,130 --> 00:51:08,580 National Academy reports on 1213 00:51:13,860 --> 00:51:11,140 geoengineering techniques we've gotten 1214 00:51:15,990 --> 00:51:13,870 lots of press from all over the place 1215 00:51:18,440 --> 00:51:16,000 about this and most people are like no 1216 00:51:20,280 --> 00:51:18,450 one's ever talked about this before so 1217 00:51:22,680 --> 00:51:20,290 this is a plan it works 1218 00:51:24,420 --> 00:51:22,690 pilot project if you will which is a 1219 00:51:28,050 --> 00:51:24,430 very novel way to think about an 1220 00:51:30,180 --> 00:51:28,060 engineering solution for its climate now 1221 00:51:32,520 --> 00:51:30,190 it is an AI it is an albedo modification 1222 00:51:36,060 --> 00:51:32,530 it says it's a it's a band-aid that will 1223 00:51:37,830 --> 00:51:36,070 help keep the radiative transfer budget 1224 00:51:40,070 --> 00:51:37,840 from changing it's not going to fix the 1225 00:51:42,870 --> 00:51:40,080 co2 problem but it might prevent warming 1226 00:51:45,530 --> 00:51:42,880 because when the ice melts you get a 1227 00:51:47,580 --> 00:51:45,540 positive feedback that warms the planet 1228 00:51:49,350 --> 00:51:47,590 so we're in the process of thinking 1229 00:51:51,720 --> 00:51:49,360 about what do we had we do this what do 1230 00:51:55,070 --> 00:51:51,730 we do next we did some calculations and 1231 00:51:58,470 --> 00:51:55,080 we wrote a paper the next steps are 1232 00:52:00,450 --> 00:51:58,480 myriad we need to test a prototype we 1233 00:52:02,700 --> 00:52:00,460 need to build a prototype we need to 1234 00:52:05,840 --> 00:52:02,710 train students to think about this both 1235 00:52:08,160 --> 00:52:05,850 the engineering side of it and the 1236 00:52:11,040 --> 00:52:08,170 political and social and ethical 1237 00:52:13,020 --> 00:52:11,050 consequences of such an activity we need 1238 00:52:14,550 --> 00:52:13,030 to have better models of what impact 1239 00:52:16,080 --> 00:52:14,560 this will have on the ice and these all 1240 00:52:18,090 --> 00:52:16,090 fit into the different aspects what 1241 00:52:20,220 --> 00:52:18,100 planet works is about but I think the 1242 00:52:22,320 --> 00:52:20,230 really important thing that we need to 1243 00:52:24,750 --> 00:52:22,330 do so we need to widen the dialogue 1244 00:52:27,690 --> 00:52:24,760 about what geoengineering can look like 1245 00:52:31,170 --> 00:52:27,700 and how we can begin to think 1246 00:52:35,130 --> 00:52:31,180 differently about solutions to 1247 00:52:37,849 --> 00:52:35,140 in this case a climate problem the loss 1248 00:52:49,309 --> 00:52:42,900 so with that okay thank you 1249 00:52:54,299 --> 00:52:51,960 well we moved from the pessimistic to 1250 00:52:56,489 --> 00:52:54,309 the optimistic to the to the can do and 1251 00:52:57,809 --> 00:52:56,499 I want I want to I want to cover all 1252 00:52:59,460 --> 00:52:57,819 those topics a little bit and have a 1253 00:53:01,529 --> 00:52:59,470 little discussion here and then we'll 1254 00:53:05,009 --> 00:53:01,539 open it up to all of you to be able to 1255 00:53:06,599 --> 00:53:05,019 ask questions and and in this case you 1256 00:53:08,460 --> 00:53:06,609 get to ask them in real time unlike many 1257 00:53:10,739 --> 00:53:08,470 of our origins events and what we have 1258 00:53:12,059 --> 00:53:10,749 microphones set up for you but I want to 1259 00:53:17,460 --> 00:53:12,069 ask each of the panelists the questions 1260 00:53:18,930 --> 00:53:17,470 an or two based on what they said and 1261 00:53:21,870 --> 00:53:18,940 then and that may lead to a discussion 1262 00:53:23,819 --> 00:53:21,880 not I want to just make sure we give you 1263 00:53:24,230 --> 00:53:23,829 all time but John I want to start with 1264 00:53:31,890 --> 00:53:24,240 you 1265 00:53:33,180 --> 00:53:31,900 from what what was the range of periods 1266 00:53:36,059 --> 00:53:33,190 from the time you first looked down at 1267 00:53:39,930 --> 00:53:36,069 the earth to the time you lasted so my 1268 00:53:42,029 --> 00:53:39,940 first flight was in 1995 so that's quite 1269 00:53:44,819 --> 00:53:42,039 a long ways from the very first you know 1270 00:53:50,819 --> 00:53:44,829 Gemini you know Apollo astronauts but 1271 00:53:52,739 --> 00:53:50,829 1995 I dental in 1997 1999 2002 so I had 1272 00:53:54,210 --> 00:53:52,749 a pretty good gig going yeah and then we 1273 00:53:58,829 --> 00:53:54,220 lost Columbia so there was then a long 1274 00:54:01,859 --> 00:53:58,839 span 2009 was my last flight okay so 14 1275 00:54:04,769 --> 00:54:01,869 years basically over and and you you did 1276 00:54:06,029 --> 00:54:04,779 see changes what was it and you talk 1277 00:54:07,710 --> 00:54:06,039 about them but I'm wondering what was 1278 00:54:09,450 --> 00:54:07,720 the most jarring change if you can think 1279 00:54:11,579 --> 00:54:09,460 about the thing that really surprised 1280 00:54:13,470 --> 00:54:11,589 you probably a lot of it was was 1281 00:54:15,509 --> 00:54:13,480 expected was there anything that you saw 1282 00:54:18,210 --> 00:54:15,519 from space that you hadn't expected and 1283 00:54:19,680 --> 00:54:18,220 and sort of made you step back and think 1284 00:54:22,859 --> 00:54:19,690 about the situation that we're in right 1285 00:54:23,999 --> 00:54:22,869 now anything well first of all most of 1286 00:54:26,809 --> 00:54:24,009 the time I was concerned about the 1287 00:54:28,710 --> 00:54:26,819 Hubble Space Telescope I'm in on it and 1288 00:54:30,509 --> 00:54:28,720 you know maybe not in the way you think 1289 00:54:32,910 --> 00:54:30,519 it's you know it's don't break the 1290 00:54:35,020 --> 00:54:32,920 Hubble yeah thunders then I shouldn't 1291 00:54:38,040 --> 00:54:35,030 come back yeah yeah 1292 00:54:40,750 --> 00:54:38,050 or at least I'd be in exile in Bolivia 1293 00:54:42,280 --> 00:54:40,760 but there is one thing that I definitely 1294 00:54:44,320 --> 00:54:42,290 noticed I mean though that there were 1295 00:54:46,000 --> 00:54:44,330 the structural changes that you've heard 1296 00:54:50,160 --> 00:54:46,010 and I mentioned like NASA and there were 1297 00:54:53,770 --> 00:54:50,170 lots of things cities growing new roads 1298 00:54:56,860 --> 00:54:53,780 those islands and in the Red Sea but the 1299 00:54:58,270 --> 00:54:56,870 one thing I did notice is that and it's 1300 00:54:59,890 --> 00:54:58,280 somewhat seasonal but I flew enough 1301 00:55:03,070 --> 00:54:59,900 different times the atmosphere has 1302 00:55:05,170 --> 00:55:03,080 gotten a lot more dusty on my first 1303 00:55:07,510 --> 00:55:05,180 flight you know what's pretty clear and 1304 00:55:10,050 --> 00:55:07,520 by 2009 you know there really were no 1305 00:55:12,880 --> 00:55:10,060 places that didn't have kind of a haze 1306 00:55:14,320 --> 00:55:12,890 and looking through the atmosphere the 1307 00:55:15,430 --> 00:55:14,330 sunsets were a little more dynamic and 1308 00:55:17,650 --> 00:55:15,440 you could actually see that in the 1309 00:55:19,960 --> 00:55:17,660 scattered light but and that's something 1310 00:55:21,190 --> 00:55:19,970 that's been described by you know a lot 1311 00:55:23,740 --> 00:55:21,200 of astronauts who have flown over 1312 00:55:26,980 --> 00:55:23,750 different time periods and talking to 1313 00:55:28,840 --> 00:55:26,990 those Apollo astronauts you know they 1314 00:55:30,790 --> 00:55:28,850 talked about a really clear atmosphere 1315 00:55:32,680 --> 00:55:30,800 and being able to see a lot further than 1316 00:55:34,900 --> 00:55:32,690 we could and that stuff that's not the 1317 00:55:37,440 --> 00:55:34,910 kind of Los Angeles age you see that's 1318 00:55:40,510 --> 00:55:37,450 literally dust due to drought or or or 1319 00:55:44,950 --> 00:55:40,520 some combination of factors a lot of it 1320 00:55:48,910 --> 00:55:44,960 is human-made aerosols particularly from 1321 00:55:50,950 --> 00:55:48,920 coal powered electricity plants and some 1322 00:55:53,860 --> 00:55:50,960 of it is dust lofted for instance from 1323 00:55:57,700 --> 00:55:53,870 the Sahara and sub-saharan Africa due to 1324 00:55:59,110 --> 00:55:57,710 the drought okay you know last thing I 1325 00:56:02,310 --> 00:55:59,120 want to ask in and you hit it on it you 1326 00:56:05,110 --> 00:56:02,320 talk about aerosols from coal powered 1327 00:56:07,210 --> 00:56:05,120 coal-fired power plants which is you 1328 00:56:10,390 --> 00:56:07,220 know is something that the current 1329 00:56:14,430 --> 00:56:10,400 administration is keen to keep pushing 1330 00:56:17,260 --> 00:56:14,440 and make worse in their effort to to UM 1331 00:56:22,510 --> 00:56:17,270 to try and make sure that the job that 1332 00:56:25,390 --> 00:56:22,520 you talked about is harder but at the 1333 00:56:27,190 --> 00:56:25,400 same time they're also keen to to stop 1334 00:56:28,500 --> 00:56:27,200 studying the Earth from space although 1335 00:56:31,780 --> 00:56:28,510 you were looking at the Space Telescope 1336 00:56:35,470 --> 00:56:31,790 or the Hubble Space Telescope there many 1337 00:56:37,720 --> 00:56:35,480 NASA satellites that in fact NASA is one 1338 00:56:39,430 --> 00:56:37,730 of the prime places to look down on 1339 00:56:41,230 --> 00:56:39,440 Earth and I want to wonder if you want 1340 00:56:43,570 --> 00:56:41,240 to just talk about the challenge of 1341 00:56:44,800 --> 00:56:43,580 studying the earth so we can as part of 1342 00:56:46,660 --> 00:56:44,810 what was talked about in order to be 1343 00:56:48,069 --> 00:56:46,670 able to deal with it and to proceed we 1344 00:56:48,939 --> 00:56:48,079 have to know what's happening 1345 00:56:50,319 --> 00:56:48,949 and you know what's happening we 1346 00:56:51,519 --> 00:56:50,329 generally have to look from space so I 1347 00:56:53,829 --> 00:56:51,529 thought you might want and that's really 1348 00:56:55,900 --> 00:56:53,839 the important point we can try and 1349 00:56:59,439 --> 00:56:55,910 measure the temperature of the surface 1350 00:57:01,269 --> 00:56:59,449 of the earth and co2 at a few sites 1351 00:57:02,919 --> 00:57:01,279 around the earth and then make some you 1352 00:57:05,319 --> 00:57:02,929 know guess about what happens everywhere 1353 00:57:07,269 --> 00:57:05,329 else but if most of the earth is covered 1354 00:57:09,999 --> 00:57:07,279 by oceans well we can put a few buoys 1355 00:57:12,219 --> 00:57:10,009 out and if you do that there's very 1356 00:57:13,989 --> 00:57:12,229 large uncertainties in what's really 1357 00:57:16,419 --> 00:57:13,999 going on on planet earth and so 1358 00:57:18,039 --> 00:57:16,429 fortunately those little streaks that 1359 00:57:19,390 --> 00:57:18,049 David grin food talked about you know 1360 00:57:21,279 --> 00:57:19,400 those Rockets lunch and a lot of those 1361 00:57:23,079 --> 00:57:21,289 are earth observation satellites and 1362 00:57:25,689 --> 00:57:23,089 some of them are satellites that are 1363 00:57:27,939 --> 00:57:25,699 used to observe the Earth's for our 1364 00:57:30,729 --> 00:57:27,949 daily weather forecast and that's a very 1365 00:57:32,529 --> 00:57:30,739 practical use but over time you know 1366 00:57:34,630 --> 00:57:32,539 they're also very useful to look for 1367 00:57:37,120 --> 00:57:34,640 these other changes and NASA 1368 00:57:38,919 --> 00:57:37,130 specifically launches satellites to look 1369 00:57:41,859 --> 00:57:38,929 at aerosols in the atmosphere to measure 1370 00:57:44,859 --> 00:57:41,869 the sea surface height to measure the 1371 00:57:47,799 --> 00:57:44,869 ice height and thickness to measure co2 1372 00:57:50,499 --> 00:57:47,809 content and that gives you you know a 1373 00:57:52,689 --> 00:57:50,509 view of the whole earth now maybe not 1374 00:57:54,009 --> 00:57:52,699 the pinpoint detail but it allows you to 1375 00:57:55,870 --> 00:57:54,019 actually to measure the properties of 1376 00:57:57,549 --> 00:57:55,880 the earth as a system which is extremely 1377 00:58:00,099 --> 00:57:57,559 important so that we can take our 1378 00:58:01,479 --> 00:58:00,109 climate models and understand you know 1379 00:58:03,130 --> 00:58:01,489 run them to see if we actually 1380 00:58:05,469 --> 00:58:03,140 understand how the earth does work and 1381 00:58:08,259 --> 00:58:05,479 there's two good functions one of which 1382 00:58:10,299 --> 00:58:08,269 is if you want our senior 1383 00:58:13,390 --> 00:58:10,309 decision-makers say the President of the 1384 00:58:16,299 --> 00:58:13,400 United States to make wise decisions he 1385 00:58:19,299 --> 00:58:16,309 has to have good data he or she in this 1386 00:58:23,380 --> 00:58:19,309 case he and this case it but anyway go 1387 00:58:25,509 --> 00:58:23,390 on okay sorry : I couldn't and without 1388 00:58:27,339 --> 00:58:25,519 without that good data you don't make 1389 00:58:29,529 --> 00:58:27,349 good decisions now that assumes that we 1390 00:58:33,189 --> 00:58:29,539 have a rational decision-making process 1391 00:58:34,630 --> 00:58:33,199 now kids data-driven so it's very 1392 00:58:36,910 --> 00:58:34,640 important that we get that data and the 1393 00:58:38,739 --> 00:58:36,920 challenge is you can't take the data for 1394 00:58:39,819 --> 00:58:38,749 five years and then say okay we've got 1395 00:58:41,739 --> 00:58:39,829 the data we'll go off and write a bunch 1396 00:58:43,359 --> 00:58:41,749 of scientific papers and let the 1397 00:58:45,489 --> 00:58:43,369 satellites spiral into the atmosphere 1398 00:58:47,229 --> 00:58:45,499 you know you need data records that are 1399 00:58:48,880 --> 00:58:47,239 not only decades long but eventually 1400 00:58:50,890 --> 00:58:48,890 we're going to need century long data 1401 00:58:53,650 --> 00:58:50,900 records that are you know we've only had 1402 00:58:55,209 --> 00:58:53,660 bass program for 50 years so so it's 1403 00:58:57,429 --> 00:58:55,219 critical that we have those measurements 1404 00:59:00,039 --> 00:58:57,439 now the good news is that even the 1405 00:59:01,280 --> 00:59:00,049 biggest climate skeptics in climate 1406 00:59:03,740 --> 00:59:01,290 change skeptics human 1407 00:59:06,770 --> 00:59:03,750 climate change skeptics in the Congress 1408 00:59:08,150 --> 00:59:06,780 all agree that they want the data they 1409 00:59:10,580 --> 00:59:08,160 just don't want scientists telling them 1410 00:59:13,220 --> 00:59:10,590 what to do about it okay but well 1411 00:59:15,080 --> 00:59:13,230 actually let me let me put on my let me 1412 00:59:16,940 --> 00:59:15,090 keep my this hat on but put on my 1413 00:59:18,770 --> 00:59:16,950 optimistic cat for a moment or at least 1414 00:59:20,120 --> 00:59:18,780 you're optimistic at because I was 1415 00:59:23,090 --> 00:59:20,130 bemoaning the fact that in the budget 1416 00:59:25,880 --> 00:59:23,100 that's been proposed there's a larger a 1417 00:59:28,520 --> 00:59:25,890 lot of talk about cutting the the NASA 1418 00:59:30,230 --> 00:59:28,530 earth monitoring satellites and you 1419 00:59:33,530 --> 00:59:30,240 point out to me that many of them are 1420 00:59:35,480 --> 00:59:33,540 already existing or and and don't cost 1421 00:59:36,890 --> 00:59:35,490 anything and and probably you therefore 1422 00:59:38,210 --> 00:59:36,900 won't be cut so maybe you can make 1423 00:59:40,130 --> 00:59:38,220 people feel better for a moment if you 1424 00:59:42,890 --> 00:59:40,140 just talk about that for a second yeah 1425 00:59:46,640 --> 00:59:42,900 well first of all the the the good news 1426 00:59:49,370 --> 00:59:46,650 is that a number of different federal 1427 00:59:50,930 --> 00:59:49,380 agencies study the earth and there's 1428 00:59:51,740 --> 00:59:50,940 some obvious ones Department of Interior 1429 00:59:53,540 --> 00:59:51,750 yes 1430 00:59:55,490 --> 00:59:53,550 Department of Agriculture progress 1431 00:59:57,920 --> 00:59:55,500 reasons agriculture that's our food 1432 00:59:59,750 --> 00:59:57,930 source so that's important and in order 1433 01:00:01,370 --> 00:59:59,760 to have a study food source they have to 1434 01:00:03,830 --> 01:00:01,380 understand crop health and other things 1435 01:00:06,440 --> 01:00:03,840 which the US Geological Survey operates 1436 01:00:09,050 --> 01:00:06,450 the Landsat satellites which tell us 1437 01:00:11,390 --> 01:00:09,060 about land use but also crop health and 1438 01:00:13,820 --> 01:00:11,400 they also as sort of an ancillary 1439 01:00:15,950 --> 01:00:13,830 benefit because we've had this long-term 1440 01:00:18,590 --> 01:00:15,960 record from the 1970s tell us about 1441 01:00:21,860 --> 01:00:18,600 climate so those things are unaffected 1442 01:00:24,320 --> 01:00:21,870 NASA operates research satellites for 1443 01:00:25,640 --> 01:00:24,330 scientists you know like those at sea at 1444 01:00:28,340 --> 01:00:25,650 the school of Earth and space 1445 01:00:29,840 --> 01:00:28,350 exploration to try and understand the 1446 01:00:32,390 --> 01:00:29,850 basic processes and write scientific 1447 01:00:34,550 --> 01:00:32,400 papers we typically design those 1448 01:00:37,040 --> 01:00:34,560 satellites for a five-year lifetime but 1449 01:00:39,380 --> 01:00:37,050 NASA over achieves and they typically 1450 01:00:42,140 --> 01:00:39,390 last for decades so we get these long 1451 01:00:45,170 --> 01:00:42,150 records the budget for NASA earth 1452 01:00:47,780 --> 01:00:45,180 science research is around about two 1453 01:00:51,230 --> 01:00:47,790 billion dollars a year and this new 1454 01:00:54,530 --> 01:00:51,240 administration lots of bluster lots of 1455 01:00:58,490 --> 01:00:54,540 critique about climate change has 1456 01:00:59,990 --> 01:00:58,500 adjusted that infinitesimally such that 1457 01:01:01,700 --> 01:01:00,000 the bulk of all the research will 1458 01:01:03,200 --> 01:01:01,710 continue in the satellites will continue 1459 01:01:04,490 --> 01:01:03,210 to operate and even if you turn the 1460 01:01:07,610 --> 01:01:04,500 budget off the satellites don't fall out 1461 01:01:09,380 --> 01:01:07,620 of the sky which is good news okay good 1462 01:01:11,930 --> 01:01:09,390 well that's okay now moving from your 1463 01:01:12,370 --> 01:01:11,940 optimism let's let's talk to David who 1464 01:01:16,539 --> 01:01:12,380 seems 1465 01:01:18,490 --> 01:01:16,549 be an incredible optimist and I wanna I 1466 01:01:20,859 --> 01:01:18,500 just want to try and challenge you on 1467 01:01:24,880 --> 01:01:20,869 some of that optimism at least to put to 1468 01:01:27,009 --> 01:01:24,890 bit you know - I mean it's nice to put a 1469 01:01:28,029 --> 01:01:27,019 to realize that we can do good as well 1470 01:01:32,079 --> 01:01:28,039 as bad and I think that's really 1471 01:01:34,680 --> 01:01:32,089 important but but especially in terms of 1472 01:01:37,690 --> 01:01:34,690 what Jane sort of emphasized and 1473 01:01:38,980 --> 01:01:37,700 introduced as well the example of ozone 1474 01:01:40,539 --> 01:01:38,990 is not really a good example right 1475 01:01:44,200 --> 01:01:40,549 because you can solve that problem and 1476 01:01:45,579 --> 01:01:44,210 and and and carbon dioxide is a problem 1477 01:01:47,440 --> 01:01:45,589 it's even actually I think you were a 1478 01:01:51,640 --> 01:01:47,450 little too optimistic in that sense 1479 01:01:53,650 --> 01:01:51,650 because it's not just that that you can 1480 01:01:55,960 --> 01:01:53,660 ignore the problem but it gets worse in 1481 01:01:58,329 --> 01:01:55,970 a much worse way the need if we don't 1482 01:02:01,299 --> 01:01:58,339 act til 2030 we have to we have to 1483 01:02:03,130 --> 01:02:01,309 remove twice as much the technical 1484 01:02:05,259 --> 01:02:03,140 demands and what we can need to do are 1485 01:02:06,940 --> 01:02:05,269 much greater than the now so it's not as 1486 01:02:09,249 --> 01:02:06,950 if we can say we don't have the money 1487 01:02:11,109 --> 01:02:09,259 now we'll wait till later because later 1488 01:02:12,700 --> 01:02:11,119 it's a lot worse so I wonder if you want 1489 01:02:15,370 --> 01:02:12,710 you might want to sort of contrast the 1490 01:02:19,660 --> 01:02:15,380 ozone Asia our carbon oxide yeah first 1491 01:02:22,769 --> 01:02:19,670 of all I think this this optimism versus 1492 01:02:26,380 --> 01:02:22,779 pessimism dichotomy is not really 1493 01:02:29,279 --> 01:02:26,390 necessarily that useful or is maybe an 1494 01:02:35,620 --> 01:02:32,259 people sometimes accuse me of being an 1495 01:02:37,240 --> 01:02:35,630 optimist because I have a vision of that 1496 01:02:41,140 --> 01:02:37,250 I try to talk about of the role that the 1497 01:02:46,109 --> 01:02:41,150 human race could aspire to play in the 1498 01:02:51,460 --> 01:02:46,119 future and at the same time I think that 1499 01:02:53,920 --> 01:02:51,470 we face huge problems that were in a 1500 01:02:55,509 --> 01:02:53,930 serious crisis that that I think Jane 1501 01:03:00,670 --> 01:02:55,519 did a very good job summarizing at the 1502 01:03:03,759 --> 01:03:00,680 in the first part of her talk and I 1503 01:03:05,740 --> 01:03:03,769 think that we can have both those ideas 1504 01:03:07,450 --> 01:03:05,750 in our heads in fact one definition of a 1505 01:03:09,910 --> 01:03:07,460 mature mind is that you can hold 1506 01:03:12,160 --> 01:03:09,920 seemingly contradictory ideas in your 1507 01:03:14,049 --> 01:03:12,170 head at the same time and it's not 1508 01:03:16,269 --> 01:03:14,059 enough to think of what we want to avoid 1509 01:03:19,269 --> 01:03:16,279 on the short-term we have to think about 1510 01:03:21,160 --> 01:03:19,279 that but I think it helps us it can help 1511 01:03:24,249 --> 01:03:21,170 us to think about that if we are armed 1512 01:03:25,060 --> 01:03:24,259 with a vision of what kind of role we 1513 01:03:27,430 --> 01:03:25,070 want to play on the 1514 01:03:31,930 --> 01:03:27,440 planet and what kind of world we want to 1515 01:03:35,110 --> 01:03:31,940 create and there are some encouraging 1516 01:03:37,120 --> 01:03:35,120 signs I mean they it's clear that it 1517 01:03:38,740 --> 01:03:37,130 seems clear that that our world 1518 01:03:41,650 --> 01:03:38,750 population is going to peak and then 1519 01:03:43,630 --> 01:03:41,660 start to decline later this century for 1520 01:03:45,160 --> 01:03:43,640 the right reasons not because death rate 1521 01:03:46,810 --> 01:03:45,170 increases but because fertility is 1522 01:03:49,630 --> 01:03:46,820 decreasing because poverty is decreasing 1523 01:03:52,450 --> 01:03:49,640 and the choices of women are increasing 1524 01:03:54,010 --> 01:03:52,460 when women get more educated in poor 1525 01:03:56,740 --> 01:03:54,020 countries these things are happening 1526 01:04:00,070 --> 01:03:56,750 we've already passed peak birthrate and 1527 01:04:01,180 --> 01:04:00,080 it's also very clear if 100 years from 1528 01:04:04,180 --> 01:04:01,190 now we're not going to be on fossil 1529 01:04:05,920 --> 01:04:04,190 fuels even if we are as stupid as stupid 1530 01:04:07,840 --> 01:04:05,930 can be there's a point where you move 1531 01:04:09,340 --> 01:04:07,850 beyond that now so there's a best-case 1532 01:04:10,750 --> 01:04:09,350 in a worst-case scenario for how we're 1533 01:04:13,300 --> 01:04:10,760 going to get from here to there and 1534 01:04:14,950 --> 01:04:13,310 being human beings it's not going to be 1535 01:04:17,440 --> 01:04:14,960 either I mean humans can learn from 1536 01:04:18,910 --> 01:04:17,450 foresight and being smart and avoiding 1537 01:04:22,960 --> 01:04:18,920 stuff because you can see what's coming 1538 01:04:24,280 --> 01:04:22,970 and we learn from tragedy and and we do 1539 01:04:25,270 --> 01:04:24,290 both and it's going to be some 1540 01:04:26,620 --> 01:04:25,280 combination it's going to be something 1541 01:04:28,180 --> 01:04:26,630 in between best case and worst case 1542 01:04:30,610 --> 01:04:28,190 scenario so there's going to be some 1543 01:04:32,500 --> 01:04:30,620 damage in the 21st century I have no 1544 01:04:35,740 --> 01:04:32,510 doubt about that the way I look at it if 1545 01:04:37,830 --> 01:04:35,750 if we do this wrong the 21st century 1546 01:04:40,150 --> 01:04:37,840 could be as tragic as the 20th century 1547 01:04:41,590 --> 01:04:40,160 and when I say that people say what are 1548 01:04:43,930 --> 01:04:41,600 you talking about the 20th century was 1549 01:04:45,490 --> 01:04:43,940 great you know woohoo except it wasn't 1550 01:04:47,800 --> 01:04:45,500 for the hundreds of millions of people 1551 01:04:49,390 --> 01:04:47,810 who died in wars and famines I think 1552 01:04:52,300 --> 01:04:49,400 that's the scale of tragedy we're facing 1553 01:04:55,270 --> 01:04:52,310 so that's the so I'm an optimist in that 1554 01:04:57,640 --> 01:04:55,280 I see that we can get through this and 1555 01:04:59,410 --> 01:04:57,650 move on to another phase and I think we 1556 01:05:01,150 --> 01:04:59,420 have to picture what that is and think 1557 01:05:03,070 --> 01:05:01,160 of ourselves as a geological force which 1558 01:05:05,470 --> 01:05:03,080 means thinking on the long-term thinking 1559 01:05:07,110 --> 01:05:05,480 about asteroids and ice ages as well as 1560 01:05:09,760 --> 01:05:07,120 our immediate challenges now 1561 01:05:11,080 --> 01:05:09,770 specifically just you asked about ozone 1562 01:05:13,300 --> 01:05:11,090 I agree 1563 01:05:16,240 --> 01:05:13,310 those are the much simpler much easier 1564 01:05:17,920 --> 01:05:16,250 problem you know we basically with a 1565 01:05:20,860 --> 01:05:17,930 couple companies that had to phase out 1566 01:05:23,800 --> 01:05:20,870 their products and phasing new ones as 1567 01:05:26,530 --> 01:05:23,810 opposed to fossil fuels which our entire 1568 01:05:28,480 --> 01:05:26,540 world economy is based on practically 1569 01:05:30,190 --> 01:05:28,490 and it's huge amounts of money and 1570 01:05:34,120 --> 01:05:30,200 resources and infrastructures that's a 1571 01:05:37,000 --> 01:05:34,130 much harder problem so I I use it as 1572 01:05:38,830 --> 01:05:37,010 proof of concept but it's it's sort of 1573 01:05:41,380 --> 01:05:38,840 idealized and it doesn't mean others 1574 01:05:44,220 --> 01:05:41,390 is going to be easy it means we have 1575 01:05:46,090 --> 01:05:44,230 models that we can try to apply okay I 1576 01:05:50,020 --> 01:05:46,100 actually I think you're overly 1577 01:05:52,750 --> 01:05:50,030 pessimistic about one thing um that go 1578 01:05:54,160 --> 01:05:52,760 to your fantasy that's one of my friend 1579 01:05:56,140 --> 01:05:54,170 Steve Pinker is argued I think pretty 1580 01:05:58,210 --> 01:05:56,150 cogently the 20th century was perhaps 1581 01:06:00,580 --> 01:05:58,220 the most peaceful century with the least 1582 01:06:03,670 --> 01:06:00,590 death and least violence of any century 1583 01:06:05,640 --> 01:06:03,680 and and and it while we tend to think of 1584 01:06:08,200 --> 01:06:05,650 the wars as having done a lot actually 1585 01:06:09,580 --> 01:06:08,210 the general human attitude about murder 1586 01:06:11,680 --> 01:06:09,590 and death is actually getting better 1587 01:06:14,890 --> 01:06:11,690 over time largely he would argue because 1588 01:06:18,070 --> 01:06:14,900 of the Enlightenment and science but I 1589 01:06:19,960 --> 01:06:18,080 will I don't disagree with that I will I 1590 01:06:22,600 --> 01:06:19,970 was amused by the talk by your by your 1591 01:06:25,000 --> 01:06:22,610 person of the fact that the two times 1592 01:06:26,320 --> 01:06:25,010 that we at least two times we've 1593 01:06:26,770 --> 01:06:26,330 dramatically changed a climate which is 1594 01:06:31,060 --> 01:06:26,780 sino 1595 01:06:33,000 --> 01:06:31,070 bacteria and and and humans responding 1596 01:06:35,920 --> 01:06:33,010 to climate change in both those cases 1597 01:06:38,440 --> 01:06:35,930 the oxygen has produced killed a lot of 1598 01:06:41,170 --> 01:06:38,450 most of the so they they change the 1599 01:06:42,610 --> 01:06:41,180 climate by dying it's and and and and 1600 01:06:44,230 --> 01:06:42,620 the same thing happened with hominid 1601 01:06:45,640 --> 01:06:44,240 species probably when they would climate 1602 01:06:47,950 --> 01:06:45,650 change one of the reasons Neanderthals 1603 01:06:49,630 --> 01:06:47,960 probably were were destroyed by Homo 1604 01:06:52,660 --> 01:06:49,640 sapiens was climate change so there's a 1605 01:06:54,790 --> 01:06:52,670 long history of species changing the 1606 01:06:59,140 --> 01:06:54,800 planet and not surviving in the process 1607 01:07:00,100 --> 01:06:59,150 and and I'm wondering whether you might 1608 01:07:02,680 --> 01:07:00,110 want to comment on that 1609 01:07:04,500 --> 01:07:02,690 well this this is absolutely true but 1610 01:07:07,600 --> 01:07:04,510 it's also true there's a long history of 1611 01:07:11,050 --> 01:07:07,610 humans and pre humans interacting with 1612 01:07:13,480 --> 01:07:11,060 climate and learning and growing and 1613 01:07:15,970 --> 01:07:13,490 becoming in a sense successively 1614 01:07:18,760 --> 01:07:15,980 more successful and more human in a 1615 01:07:21,700 --> 01:07:18,770 sense in the process of if you look at 1616 01:07:25,960 --> 01:07:21,710 all the major innovations that led us to 1617 01:07:28,330 --> 01:07:25,970 be modern human we're discovering things 1618 01:07:31,000 --> 01:07:28,340 like upright walking larger brain size 1619 01:07:33,400 --> 01:07:31,010 domestication of fire various kinds of 1620 01:07:35,740 --> 01:07:33,410 social and material technologies almost 1621 01:07:38,410 --> 01:07:35,750 all the big breakthroughs came during 1622 01:07:40,660 --> 01:07:38,420 times of climate chaos and in response 1623 01:07:43,750 --> 01:07:40,670 to climate chaos and there's a 1624 01:07:46,450 --> 01:07:43,760 paleoanthropologist here at ASU named 1625 01:07:48,970 --> 01:07:46,460 Curtis Marion who's worked in this site 1626 01:07:51,370 --> 01:07:48,980 called pinnacle point and that's very 1627 01:07:52,510 --> 01:07:51,380 near the southern tip of Africa which is 1628 01:07:54,910 --> 01:07:52,520 where 1629 01:07:56,650 --> 01:07:54,920 some people think Curtis Marion thinks 1630 01:08:00,490 --> 01:07:56,660 and I think he may be right is the 1631 01:08:02,050 --> 01:08:00,500 origin of modern humans and that was the 1632 01:08:04,090 --> 01:08:02,060 humans that were driven there they 1633 01:08:05,950 --> 01:08:04,100 retreated there in response to an ice 1634 01:08:09,340 --> 01:08:05,960 age about a hundred ninety thousand 1635 01:08:10,780 --> 01:08:09,350 years ago and most of what was going to 1636 01:08:13,120 --> 01:08:10,790 become the human race was wiped out 1637 01:08:14,260 --> 01:08:13,130 there's a genetic bottleneck in fact we 1638 01:08:16,570 --> 01:08:14,270 might have been down to fewer than a 1639 01:08:18,700 --> 01:08:16,580 thousand individual under yeah a few 1640 01:08:20,440 --> 01:08:18,710 hundreds of which is by the way partly 1641 01:08:22,420 --> 01:08:20,450 why the human race is so incredibly 1642 01:08:24,309 --> 01:08:22,430 uniform genetically compared to other 1643 01:08:25,630 --> 01:08:24,319 large mammals we're really all humans 1644 01:08:27,640 --> 01:08:25,640 are the same 1645 01:08:30,099 --> 01:08:27,650 genetically because we survive this 1646 01:08:33,070 --> 01:08:30,109 bottleneck and re-radiated but the 1647 01:08:36,400 --> 01:08:33,080 humans or human ancestors a pinnacle 1648 01:08:40,559 --> 01:08:36,410 point we had to reinvent themselves and 1649 01:08:43,450 --> 01:08:40,569 reinvent what it meant to be a 1650 01:08:44,920 --> 01:08:43,460 cooperative innovative species on the 1651 01:08:46,090 --> 01:08:44,930 planet they could no longer be 1652 01:08:47,769 --> 01:08:46,100 hunter-gatherers in the way they have 1653 01:08:50,650 --> 01:08:47,779 been because Africa was covered with ice 1654 01:08:53,410 --> 01:08:50,660 the game the range wasn't there the game 1655 01:08:57,660 --> 01:08:53,420 died out and so they invented what is 1656 01:09:00,730 --> 01:08:57,670 known as complex recipe long-chain 1657 01:09:05,200 --> 01:09:00,740 complex long-chain recipe technology 1658 01:09:07,480 --> 01:09:05,210 where you're the what you start off with 1659 01:09:10,210 --> 01:09:07,490 is not obviously related to what the 1660 01:09:11,950 --> 01:09:10,220 products are so in things like heat 1661 01:09:14,019 --> 01:09:11,960 treatment of rocks underneath the ground 1662 01:09:16,990 --> 01:09:14,029 to make hardened rocks for new kinds of 1663 01:09:19,450 --> 01:09:17,000 tools and Spears and things and in order 1664 01:09:20,380 --> 01:09:19,460 to do that you needed language to 1665 01:09:22,170 --> 01:09:20,390 because you needed to be able to 1666 01:09:24,730 --> 01:09:22,180 communicate it to the next generation 1667 01:09:28,329 --> 01:09:24,740 this is also the first site where we 1668 01:09:29,980 --> 01:09:28,339 find ochre and pop you know adornment 1669 01:09:31,269 --> 01:09:29,990 and a lot of things that we think oh me 1670 01:09:33,370 --> 01:09:31,279 this is where modern humans might have 1671 01:09:35,530 --> 01:09:33,380 might have formed and they formed in 1672 01:09:37,450 --> 01:09:35,540 response to a climate crisis they 1673 01:09:39,070 --> 01:09:37,460 reinvented themselves they became better 1674 01:09:41,760 --> 01:09:39,080 at the things that we humans have 1675 01:09:46,200 --> 01:09:41,770 distinguished ourselves by which are 1676 01:09:48,940 --> 01:09:46,210 cooperating inventing communicating 1677 01:09:51,340 --> 01:09:48,950 enlarging our sphere of cooperation and 1678 01:09:54,370 --> 01:09:51,350 that we've done this many times in the 1679 01:09:56,230 --> 01:09:54,380 past and I see in a certain sense this 1680 01:09:58,980 --> 01:09:56,240 is encouraging it shows that in a sense 1681 01:10:01,900 --> 01:09:58,990 we have the capacity for reinvention and 1682 01:10:05,710 --> 01:10:01,910 I'll say one more optimistic thing which 1683 01:10:08,350 --> 01:10:05,720 is imagine trying to describe 1684 01:10:10,360 --> 01:10:08,360 a modern city to the people from 1685 01:10:12,820 --> 01:10:10,370 pinnacle point say a hundred thousand 1686 01:10:14,980 --> 01:10:12,830 years ago how we live now you wouldn't 1687 01:10:17,230 --> 01:10:14,990 be able to do it now maybe that's as 1688 01:10:19,330 --> 01:10:17,240 hard as it is for us to imagine the 1689 01:10:21,790 --> 01:10:19,340 fully sustainable society that we will 1690 01:10:23,470 --> 01:10:21,800 have a few thousand years from now well 1691 01:10:27,250 --> 01:10:23,480 I hope it I certainly hope it's the case 1692 01:10:28,750 --> 01:10:27,260 is interesting point that climate severe 1693 01:10:31,530 --> 01:10:28,760 climate change but from an evolutionary 1694 01:10:33,880 --> 01:10:31,540 perspective has often brought new 1695 01:10:36,700 --> 01:10:33,890 opportunities I would argue musial ebuy 1696 01:10:39,370 --> 01:10:36,710 new species but but and for me my point 1697 01:10:41,440 --> 01:10:39,380 of view I'll throw this out of it maybe 1698 01:10:43,330 --> 01:10:41,450 maybe the new silicon-based life forms 1699 01:10:44,860 --> 01:10:43,340 that we're creating now will be the next 1700 01:10:47,080 --> 01:10:44,870 species that will survive into the and 1701 01:10:49,390 --> 01:10:47,090 maybe be better planetary managers than 1702 01:10:51,430 --> 01:10:49,400 we will but we'll see but it doesn't 1703 01:10:54,250 --> 01:10:51,440 necessarily the salient point yes is the 1704 01:10:56,500 --> 01:10:54,260 loss of biodiversity that's how deep a 1705 01:10:58,090 --> 01:10:56,510 hole we might be in yeah or maybe some 1706 01:11:01,120 --> 01:10:58,100 kind of partnership between us and then 1707 01:11:02,320 --> 01:11:01,130 I think that the issues you know stated 1708 01:11:04,630 --> 01:11:02,330 or the things that you've been 1709 01:11:06,700 --> 01:11:04,640 describing David I think are all what I 1710 01:11:09,280 --> 01:11:06,710 would call and merge it you know they're 1711 01:11:10,330 --> 01:11:09,290 they're all actions of individuals or 1712 01:11:12,880 --> 01:11:10,340 groups of small groups of individuals 1713 01:11:15,520 --> 01:11:12,890 that add up to something you know a new 1714 01:11:18,040 --> 01:11:15,530 pattern and the question is is that is 1715 01:11:20,650 --> 01:11:18,050 that the kind of problem that we're 1716 01:11:24,300 --> 01:11:20,660 facing right now because if we need some 1717 01:11:27,130 --> 01:11:24,310 kind of coherent action to change things 1718 01:11:30,220 --> 01:11:27,140 then you know I don't think there are 1719 01:11:31,540 --> 01:11:30,230 too many examples maybe d-day or 1720 01:11:34,930 --> 01:11:31,550 something but even that you could go 1721 01:11:37,150 --> 01:11:34,940 after I I think that the the issue is 1722 01:11:40,240 --> 01:11:37,160 that we don't know how as a species to 1723 01:11:41,440 --> 01:11:40,250 set goals for the species certainly 1724 01:11:43,240 --> 01:11:41,450 we've never really done we've never had 1725 01:11:45,400 --> 01:11:43,250 to do it globally we've never had to do 1726 01:11:47,620 --> 01:11:45,410 it the first time and there's no looking 1727 01:11:50,170 --> 01:11:47,630 out at the world today it's not one 1728 01:11:52,060 --> 01:11:50,180 would not be optimistic that we're doing 1729 01:11:53,350 --> 01:11:52,070 the job of thinking globally yet and I 1730 01:11:55,000 --> 01:11:53,360 want to I want to get there are some 1731 01:11:58,110 --> 01:11:55,010 examples though from the realm of public 1732 01:12:03,010 --> 01:11:58,120 health there are diseases that have been 1733 01:12:04,960 --> 01:12:03,020 eliminated globally we were just leaned 1734 01:12:06,040 --> 01:12:04,970 OTT as good at it as we need to be but 1735 01:12:07,870 --> 01:12:06,050 it's not sure that there are zero 1736 01:12:09,850 --> 01:12:07,880 examples where we've been able to get 1737 01:12:14,170 --> 01:12:09,860 together and solve problems globally 1738 01:12:15,760 --> 01:12:14,180 oh yeah well okay good I'm not winged 1739 01:12:18,390 --> 01:12:15,770 one could argue that but I think I'd 1740 01:12:19,800 --> 01:12:18,400 like it you know I I often say from my 1741 01:12:21,510 --> 01:12:19,810 my friend Cormac MacCarthy would say 1742 01:12:23,520 --> 01:12:21,520 when I asked him why he was so cheerful 1743 01:12:27,180 --> 01:12:23,530 he said I'm a pessimist but that's no 1744 01:12:30,480 --> 01:12:27,190 reason to be gloomy so that's my 1745 01:12:32,010 --> 01:12:30,490 attitude so let me let me however try 1746 01:12:34,380 --> 01:12:32,020 and confront you about one thing so 1747 01:12:35,760 --> 01:12:34,390 there's the two interesting 1748 01:12:39,750 --> 01:12:35,770 geoengineering things you talked about 1749 01:12:42,030 --> 01:12:39,760 where we're putting these aerosols or or 1750 01:12:44,630 --> 01:12:42,040 or something dust or whatever you want 1751 01:12:47,340 --> 01:12:44,640 in the atmosphere to block sunlight or 1752 01:12:53,370 --> 01:12:47,350 potentially block sunlight or extracting 1753 01:12:54,990 --> 01:12:53,380 co2 I I and you said well we may need to 1754 01:13:00,270 --> 01:12:55,000 just keep doing the first until we get 1755 01:13:02,130 --> 01:13:00,280 second-straight I have a problem with 1756 01:13:04,890 --> 01:13:02,140 the with the first and then what and and 1757 01:13:06,120 --> 01:13:04,900 that is that online you lots of problems 1758 01:13:08,520 --> 01:13:06,130 but if you point out that you know you 1759 01:13:09,870 --> 01:13:08,530 don't you know the first you know what 1760 01:13:11,670 --> 01:13:09,880 happens you take the second you know 1761 01:13:13,350 --> 01:13:11,680 what happens you take co2 out we know we 1762 01:13:15,030 --> 01:13:13,360 know what was like back then so we know 1763 01:13:16,440 --> 01:13:15,040 what the results will be but putting 1764 01:13:17,970 --> 01:13:16,450 things in the atmosphere as you point 1765 01:13:21,270 --> 01:13:17,980 out has a lot of unintended consequences 1766 01:13:23,040 --> 01:13:21,280 but for me the worst one is that if we 1767 01:13:25,950 --> 01:13:23,050 choose to if we chose in the United 1768 01:13:28,620 --> 01:13:25,960 States to remove co2 we make a 1769 01:13:32,190 --> 01:13:28,630 unilateral decision but and in it 1770 01:13:33,960 --> 01:13:32,200 improves the world okay but if but 1771 01:13:35,580 --> 01:13:33,970 someone's got to decide to put those 1772 01:13:37,380 --> 01:13:35,590 aerosols in and there isn't going to be 1773 01:13:39,630 --> 01:13:37,390 global consensus necessarily that we're 1774 01:13:41,310 --> 01:13:39,640 willing to arrest but the MIT but one 1775 01:13:43,920 --> 01:13:41,320 country does it and the whole world 1776 01:13:44,820 --> 01:13:43,930 either suffers or not and and who has 1777 01:13:47,370 --> 01:13:44,830 the right to do that 1778 01:13:49,320 --> 01:13:47,380 so I wanted you to come in well this is 1779 01:13:51,240 --> 01:13:49,330 of course the biggest problem with all 1780 01:13:53,130 --> 01:13:51,250 of this is that you know somebody's got 1781 01:13:53,820 --> 01:13:53,140 their hand on the thermostat yeah with 1782 01:13:55,350 --> 01:13:53,830 this concept 1783 01:13:56,880 --> 01:13:55,360 personally I don't I don't think it's 1784 01:13:58,830 --> 01:13:56,890 going to happen that way anyway I think 1785 01:14:00,750 --> 01:13:58,840 things like what Hillary is describing 1786 01:14:02,070 --> 01:14:00,760 or what's going to happen I think I 1787 01:14:04,200 --> 01:14:02,080 think what's going to happen is that 1788 01:14:06,390 --> 01:14:04,210 people are going to start to feel 1789 01:14:08,550 --> 01:14:06,400 impacts and they're going to start to 1790 01:14:11,340 --> 01:14:08,560 want to do something in a much more 1791 01:14:13,170 --> 01:14:11,350 regional basis and that the impacts that 1792 01:14:15,390 --> 01:14:13,180 they feel are going to get bigger and 1793 01:14:16,890 --> 01:14:15,400 more widespread and last longer and the 1794 01:14:18,540 --> 01:14:16,900 kinds of interventions that they choose 1795 01:14:20,070 --> 01:14:18,550 to do are going to get bigger and more 1796 01:14:22,710 --> 01:14:20,080 widespread and people are going to think 1797 01:14:26,040 --> 01:14:22,720 of more things and they're going to 1798 01:14:28,490 --> 01:14:26,050 start to affect the globe again and and 1799 01:14:31,620 --> 01:14:28,500 then I think what you're going to see is 1800 01:14:32,370 --> 01:14:31,630 it's going to I think that it could be 1801 01:14:34,980 --> 01:14:32,380 emerging 1802 01:14:36,810 --> 01:14:34,990 that level that that basically people 1803 01:14:39,060 --> 01:14:36,820 say I can't stand this heatwave it's 1804 01:14:40,500 --> 01:14:39,070 been 130 for a month we've got to do 1805 01:14:42,450 --> 01:14:40,510 something and they're going to start to 1806 01:14:43,560 --> 01:14:42,460 do something locally or they don't have 1807 01:14:45,660 --> 01:14:43,570 them on soon so they're going to 1808 01:14:49,980 --> 01:14:45,670 overturn portions of the ocean and try 1809 01:14:52,590 --> 01:14:49,990 to steer steer rain differently and and 1810 01:14:54,540 --> 01:14:52,600 so these things will people will think 1811 01:14:56,880 --> 01:14:54,550 of more of these things now the question 1812 01:14:58,620 --> 01:14:56,890 is will they work I mean this is the 1813 01:15:00,810 --> 01:14:58,630 other piece of it why do people keep 1814 01:15:02,640 --> 01:15:00,820 coming back to this SRM idea solar 1815 01:15:05,940 --> 01:15:02,650 radiation management because we know it 1816 01:15:08,460 --> 01:15:05,950 works and that is really pretty amazing 1817 01:15:11,700 --> 01:15:08,470 and also don't we get works at item 1818 01:15:13,140 --> 01:15:11,710 level it also also often kills craps and 1819 01:15:14,400 --> 01:15:13,150 people I mean if you look at what 1820 01:15:17,010 --> 01:15:14,410 happened to volcanoes there was a lot of 1821 01:15:18,840 --> 01:15:17,020 there was a lot of starvation as a 1822 01:15:21,450 --> 01:15:18,850 result of that because of unexpected 1823 01:15:22,920 --> 01:15:21,460 climate changes resulting in well yes so 1824 01:15:25,470 --> 01:15:22,930 the question is do you get smart enough 1825 01:15:27,390 --> 01:15:25,480 to do it right and I'd say I don't know 1826 01:15:29,220 --> 01:15:27,400 you know I think but we damn well better 1827 01:15:31,200 --> 01:15:29,230 do research because even if you don't 1828 01:15:33,090 --> 01:15:31,210 think you should do it somebody else may 1829 01:15:34,440 --> 01:15:33,100 do it yeah well that's what actually 1830 01:15:36,120 --> 01:15:34,450 that's why I want to add the second I 1831 01:15:38,520 --> 01:15:36,130 want to ask you in the number to Hillary 1832 01:15:40,470 --> 01:15:38,530 in sec was I'm worried because I act 1833 01:15:41,700 --> 01:15:40,480 they've been I remember on a regular 1834 01:15:43,710 --> 01:15:41,710 program with the net scientist who's 1835 01:15:45,390 --> 01:15:43,720 strongly advocating this and there are 1836 01:15:47,670 --> 01:15:45,400 scientists were strongly advocating is 1837 01:15:48,870 --> 01:15:47,680 and it seems like a quick fix a quick 1838 01:15:50,370 --> 01:15:48,880 and easy fix which means you don't have 1839 01:15:52,020 --> 01:15:50,380 to think you don't have to change the 1840 01:15:53,820 --> 01:15:52,030 way society works you don't have to do 1841 01:15:55,860 --> 01:15:53,830 the hard problems and what worries me 1842 01:15:57,930 --> 01:15:55,870 that's that appeals tremendously to 1843 01:15:59,340 --> 01:15:57,940 politicians certain polls you're right 1844 01:16:01,620 --> 01:15:59,350 you're right that's a huge problem 1845 01:16:03,360 --> 01:16:01,630 because it's just not true that's why 1846 01:16:05,580 --> 01:16:03,370 it's a problem it's just fundamentally 1847 01:16:08,370 --> 01:16:05,590 not true if you don't mitigate if you 1848 01:16:12,210 --> 01:16:08,380 don't stop emitting then the gap between 1849 01:16:15,390 --> 01:16:12,220 what you're trying to do radiation 1850 01:16:17,220 --> 01:16:15,400 balance management with grows and it 1851 01:16:19,290 --> 01:16:17,230 grows and you get farther and farther 1852 01:16:21,240 --> 01:16:19,300 and farther away from any known state of 1853 01:16:25,230 --> 01:16:21,250 climate that we've ever been in so if 1854 01:16:27,300 --> 01:16:25,240 you the fundamental strategy is first 1855 01:16:30,240 --> 01:16:27,310 and foremost mitigation you have to stop 1856 01:16:32,580 --> 01:16:30,250 emitting and you know just I just have 1857 01:16:34,680 --> 01:16:32,590 to get in my one other dig I don't I 1858 01:16:36,750 --> 01:16:34,690 really get upset 1859 01:16:38,400 --> 01:16:36,760 when I hear people say just leave it in 1860 01:16:41,100 --> 01:16:38,410 the ground or we won't be using fossil 1861 01:16:43,410 --> 01:16:41,110 fuel because what that does is it leaves 1862 01:16:45,690 --> 01:16:43,420 out a whole raft of solutions that 1863 01:16:46,169 --> 01:16:45,700 actually do involve fossil energy but 1864 01:16:48,810 --> 01:16:46,179 don't 1865 01:16:51,209 --> 01:16:48,820 it and we have to we have to be open to 1866 01:16:53,040 --> 01:16:51,219 all of these things we have to be open 1867 01:16:55,229 --> 01:16:53,050 to nuclear power we have to be open to 1868 01:16:58,290 --> 01:16:55,239 carbon capture and storage we have to be 1869 01:17:00,629 --> 01:16:58,300 open to some amount of renewable energy 1870 01:17:03,509 --> 01:17:00,639 but we have to be doing all of it and 1871 01:17:05,850 --> 01:17:03,519 you know just to say we're not going to 1872 01:17:08,729 --> 01:17:05,860 use fossil fuel anymore is I think 1873 01:17:11,310 --> 01:17:08,739 cutting off one of your arms in terms of 1874 01:17:13,109 --> 01:17:11,320 getting forward on this so did you and 1875 01:17:14,989 --> 01:17:13,119 and this will lead me into Hillary I 1876 01:17:21,060 --> 01:17:14,999 think nicely well but do you think we as 1877 01:17:23,580 --> 01:17:21,070 as scientists is it at this point should 1878 01:17:25,140 --> 01:17:23,590 one ad so what worries me is advocating 1879 01:17:27,330 --> 01:17:25,150 a potential solution or advocating 1880 01:17:29,520 --> 01:17:27,340 research to look into the possible 1881 01:17:32,759 --> 01:17:29,530 effects of that solution but is it more 1882 01:17:39,000 --> 01:17:32,769 is it irresponsible to say - not for 1883 01:17:40,469 --> 01:17:39,010 those two arguments and and and research 1884 01:17:43,319 --> 01:17:40,479 into that way that's and that's a common 1885 01:17:45,449 --> 01:17:43,329 thing yeah I think that's unethical oh 1886 01:17:47,009 --> 01:17:45,459 okay I would agree but I want to see 1887 01:17:48,359 --> 01:17:47,019 what well and then that leads me to 1888 01:17:49,679 --> 01:17:48,369 Hillary who talked about two things I 1889 01:17:52,109 --> 01:17:49,689 want to want to try and confront you 1890 01:17:53,879 --> 01:17:52,119 with or at least one well - one you 1891 01:17:56,129 --> 01:17:53,889 talked about planet works and I wanted 1892 01:17:57,989 --> 01:17:56,139 to say one of the reasons I'm so happy 1893 01:18:01,140 --> 01:17:57,999 to be doing this with with planet works 1894 01:18:02,489 --> 01:18:01,150 is that is that you know by moaning the 1895 01:18:03,750 --> 01:18:02,499 problems is one things but thinking 1896 01:18:05,339 --> 01:18:03,760 about how to solve them is really much 1897 01:18:07,969 --> 01:18:05,349 more productive and that's what we're 1898 01:18:10,199 --> 01:18:07,979 trying to do in a number of things in 1899 01:18:11,850 --> 01:18:10,209 programs are working on and I hope that 1900 01:18:13,979 --> 01:18:11,860 the lesson is that we need to think 1901 01:18:16,020 --> 01:18:13,989 about these things that that there are 1902 01:18:19,109 --> 01:18:16,030 huge challenges but fortune favors the 1903 01:18:22,410 --> 01:18:19,119 prepared mind and we need to prepare but 1904 01:18:25,529 --> 01:18:22,420 but you said advocacy and I'm wondering 1905 01:18:27,149 --> 01:18:25,539 so for example my friend Jim Hanson is 1906 01:18:28,560 --> 01:18:27,159 an advocate a lot of scientists wonder 1907 01:18:35,969 --> 01:18:28,570 whether it's too much of an advocate and 1908 01:18:38,370 --> 01:18:35,979 and should we be should we be advocating 1909 01:18:40,529 --> 01:18:38,380 specific policies or or a scientist 1910 01:18:44,069 --> 01:18:40,539 should we be should we be pointing out 1911 01:18:46,560 --> 01:18:44,079 the science and and encouraging the 1912 01:18:49,859 --> 01:18:46,570 people who are elected to determine 1913 01:18:50,640 --> 01:18:49,869 policies I'm wondering when you raise an 1914 01:18:53,939 --> 01:18:50,650 excellent point 1915 01:18:57,699 --> 01:18:53,949 Lawrence and advocacy is a pretty 1916 01:18:59,770 --> 01:18:57,709 fraught term right now 1917 01:19:01,419 --> 01:18:59,780 and there's no question that is 1918 01:19:03,640 --> 01:19:01,429 scientists a lot of our credibility 1919 01:19:05,770 --> 01:19:03,650 comes from the fact that we produce 1920 01:19:07,089 --> 01:19:05,780 information and we are willing to say 1921 01:19:09,819 --> 01:19:07,099 this is the best information that we 1922 01:19:11,290 --> 01:19:09,829 know how to make but I do think as we 1923 01:19:14,229 --> 01:19:11,300 move into the Anthropocene that 1924 01:19:16,149 --> 01:19:14,239 scientists are also responsible for 1925 01:19:19,270 --> 01:19:16,159 interpreting their information and 1926 01:19:21,790 --> 01:19:19,280 providing a way to read the information 1927 01:19:23,739 --> 01:19:21,800 that we generate as scientists for the 1928 01:19:26,560 --> 01:19:23,749 public yeah and if that's advocacy then 1929 01:19:28,839 --> 01:19:26,570 I'm good with that maybe we need a new 1930 01:19:30,669 --> 01:19:28,849 term for it but I do think we have a 1931 01:19:33,429 --> 01:19:30,679 responsibility as scientists who also 1932 01:19:35,259 --> 01:19:33,439 interpret our information in the best 1933 01:19:38,919 --> 01:19:35,269 possible way we can the idea of 1934 01:19:41,020 --> 01:19:38,929 generating data producing information 1935 01:19:43,719 --> 01:19:41,030 and then leaving it at the hands of a 1936 01:19:46,390 --> 01:19:43,729 you know a regulator or a politician who 1937 01:19:49,270 --> 01:19:46,400 doesn't have the tools to interpret it I 1938 01:19:51,310 --> 01:19:49,280 think that's also unethical and and and 1939 01:19:53,859 --> 01:19:51,320 my wife needs to work for the government 1940 01:19:56,169 --> 01:19:53,869 in Australia and and point out that 1941 01:19:58,509 --> 01:19:56,179 scientists and and and government 1942 01:19:59,770 --> 01:19:58,519 officials don't the scientists think 1943 01:20:01,089 --> 01:19:59,780 they know what the what the important 1944 01:20:02,259 --> 01:20:01,099 things are and they're very different 1945 01:20:03,939 --> 01:20:02,269 questions and what the government 1946 01:20:05,080 --> 01:20:03,949 officials do and they need to be able to 1947 01:20:06,699 --> 01:20:05,090 communicate and learn how to communicate 1948 01:20:09,489 --> 01:20:06,709 to each other that's a critically 1949 01:20:11,679 --> 01:20:09,499 important point right and I didn't I 1950 01:20:13,330 --> 01:20:11,689 could have talked for a long time yeah 1951 01:20:15,009 --> 01:20:13,340 it's really important to remember that 1952 01:20:17,339 --> 01:20:15,019 planet works is not just the scientists 1953 01:20:20,290 --> 01:20:17,349 and the engineers we are absolutely 1954 01:20:24,279 --> 01:20:20,300 involving social scientists and people 1955 01:20:27,969 --> 01:20:24,289 who study politics and law and ethics 1956 01:20:29,859 --> 01:20:27,979 and human humanists as well that 1957 01:20:31,449 --> 01:20:29,869 conversation all of what we're talking 1958 01:20:33,069 --> 01:20:31,459 about is really about how humans make 1959 01:20:35,439 --> 01:20:33,079 decisions and which decisions do they 1960 01:20:37,330 --> 01:20:35,449 make and why science isn't going to 1961 01:20:40,239 --> 01:20:37,340 answer those questions those are the 1962 01:20:42,310 --> 01:20:40,249 questions that we need we need the human 1963 01:20:43,629 --> 01:20:42,320 endeavor to answer those questions okay 1964 01:20:45,219 --> 01:20:43,639 let me give you another sort of Devil's 1965 01:20:46,629 --> 01:20:45,229 Advocate last Devils I have a question 1966 01:20:49,469 --> 01:20:46,639 and then we'll move for about 50 minutes 1967 01:20:51,219 --> 01:20:49,479 of public questions if there are them I 1968 01:20:52,750 --> 01:20:51,229 couldn't help when you were talking 1969 01:20:56,290 --> 01:20:52,760 thinking of a line from the Rocky Horror 1970 01:20:58,660 --> 01:20:56,300 Picture Show which was you know treating 1971 01:21:01,509 --> 01:20:58,670 the symptoms and not the disease and and 1972 01:21:02,709 --> 01:21:01,519 and it's it's and and and so do you 1973 01:21:04,660 --> 01:21:02,719 think there's a problem let's say you 1974 01:21:06,939 --> 01:21:04,670 know this is a hey this is a neat way to 1975 01:21:09,790 --> 01:21:06,949 make more ice we don't have to worry 1976 01:21:11,700 --> 01:21:09,800 about I mean that that that providing 1977 01:21:12,810 --> 01:21:11,710 these things provides an impetus 1978 01:21:14,670 --> 01:21:12,820 could provide an impetus to see 1979 01:21:16,260 --> 01:21:14,680 business-as-usual look we got the 1980 01:21:20,520 --> 01:21:16,270 technical solutions we don't have to 1981 01:21:22,560 --> 01:21:20,530 change the way we live that's sure one 1982 01:21:24,300 --> 01:21:22,570 could say that but it's exactly the same 1983 01:21:27,960 --> 01:21:24,310 thing that Jane's saying about sulfate 1984 01:21:29,820 --> 01:21:27,970 aerosol exactly it's we we have to do 1985 01:21:31,830 --> 01:21:29,830 everything we possibly can right now and 1986 01:21:33,930 --> 01:21:31,840 if that means buying ourselves some time 1987 01:21:36,240 --> 01:21:33,940 then we should buy ourselves some time 1988 01:21:38,640 --> 01:21:36,250 but we have to recognize the co2 problem 1989 01:21:41,790 --> 01:21:38,650 gets worse the co2 problem is currently 1990 01:21:43,470 --> 01:21:41,800 accelerating and we can we can moderate 1991 01:21:45,630 --> 01:21:43,480 temperature all we want however we 1992 01:21:47,910 --> 01:21:45,640 decide to do it but the co2 problem is 1993 01:21:50,520 --> 01:21:47,920 growing underneath that actually we have 1994 01:21:51,870 --> 01:21:50,530 to make that point in that regard I was 1995 01:21:55,110 --> 01:21:51,880 going to ask in your paper I because I 1996 01:21:57,210 --> 01:21:55,120 haven't read it is presumably obviously 1997 01:21:58,710 --> 01:21:57,220 in this kind of sea ice thing it's a lot 1998 01:22:00,750 --> 01:21:58,720 easier to impact on the problem now than 1999 01:22:02,490 --> 01:22:00,760 it will be in 20 years when if we if 2000 01:22:04,860 --> 01:22:02,500 business as usual because then you know 2001 01:22:06,300 --> 01:22:04,870 to recreate all the Arctic sea ice is a 2002 01:22:08,580 --> 01:22:06,310 little bit different than then 2003 01:22:10,080 --> 01:22:08,590 increasing it by a bio meter or 2004 01:22:13,290 --> 01:22:10,090 something oh that's absolutely right in 2005 01:22:15,420 --> 01:22:13,300 fact I'm pretty sure that you can't 2006 01:22:17,460 --> 01:22:15,430 recreate sea ice you can only thicken 2007 01:22:20,820 --> 01:22:17,470 existing sea ice because it won't freeze 2008 01:22:22,980 --> 01:22:20,830 at the seawater temperature so so that's 2009 01:22:27,180 --> 01:22:22,990 sort of in 2030 this problem will be too 2010 01:22:28,320 --> 01:22:27,190 late - oh yeah so okay well having so do 2011 01:22:31,020 --> 01:22:28,330 you want you want to say things yeah I 2012 01:22:32,610 --> 01:22:31,030 want to maybe address this issue I think 2013 01:22:34,920 --> 01:22:32,620 one of the one of the things that we 2014 01:22:36,330 --> 01:22:34,930 really need to do like doing one second 2015 01:22:37,470 --> 01:22:36,340 while you're talking it looks like 2016 01:22:38,940 --> 01:22:37,480 people junk but go ahead 2017 01:22:40,020 --> 01:22:38,950 feel free to go to the microphones and 2018 01:22:42,480 --> 01:22:40,030 get ready if you have some questions 2019 01:22:45,780 --> 01:22:42,490 yeah Wilson is one of my heroes in his 2020 01:22:48,540 --> 01:22:45,790 book Concilium we are still training 2021 01:22:50,520 --> 01:22:48,550 people to be reductionist and part of 2022 01:22:53,220 --> 01:22:50,530 the science needs to be the system 2023 01:22:54,600 --> 01:22:53,230 science and this because we need to be 2024 01:22:57,060 --> 01:22:54,610 putting these things in context for 2025 01:22:59,250 --> 01:22:57,070 people and second thing I want to say is 2026 01:23:01,320 --> 01:22:59,260 I think we need a new career path for 2027 01:23:03,150 --> 01:23:01,330 people that are neither scientists nor 2028 01:23:05,840 --> 01:23:03,160 humanists that they're somewhere in the 2029 01:23:09,270 --> 01:23:05,850 middle and they're translating they're 2030 01:23:10,860 --> 01:23:09,280 moving forward trying to understand what 2031 01:23:13,170 --> 01:23:10,870 the meaning is and communicate that 2032 01:23:15,090 --> 01:23:13,180 after what seen studies yeah well it 2033 01:23:15,900 --> 01:23:15,100 would be great to have science who it 2034 01:23:17,510 --> 01:23:15,910 would be wonderful to have 2035 01:23:19,500 --> 01:23:17,520 scientifically literate humanists and 2036 01:23:21,870 --> 01:23:19,510 humanistically they're its scientists 2037 01:23:24,730 --> 01:23:21,880 anyway so let's let them on that off a 2038 01:23:26,710 --> 01:23:24,740 minute I know I am I think it's a 2039 01:23:28,330 --> 01:23:26,720 I think it's a it's a goal and I think I 2040 01:23:30,700 --> 01:23:28,340 think it was actually we've moved away 2041 01:23:32,080 --> 01:23:30,710 from that it used to be as an educated 2042 01:23:34,000 --> 01:23:32,090 person at the beginning of the 19th 2043 01:23:35,440 --> 01:23:34,010 century if you didn't have some basic 2044 01:23:37,720 --> 01:23:35,450 understanding of science it was you were 2045 01:23:40,030 --> 01:23:37,730 considered not educated and that has 2046 01:23:42,760 --> 01:23:40,040 changed but let's let's go to the 2047 01:23:46,750 --> 01:23:42,770 question so so my name is Moe Teague tea 2048 01:23:47,470 --> 01:23:46,760 party from JPL I have a comment and a 2049 01:23:49,600 --> 01:23:47,480 question 2050 01:23:54,700 --> 01:23:49,610 ok the comment be short I hope yeah a 2051 01:23:59,560 --> 01:23:54,710 comment is that we we tell that we 2052 01:24:01,720 --> 01:23:59,570 humans are putting it in danger but 2053 01:24:03,730 --> 01:24:01,730 actually we are not putting it in danger 2054 01:24:06,010 --> 01:24:03,740 but we are putting our own cells in 2055 01:24:07,630 --> 01:24:06,020 danger so that is the key point that we 2056 01:24:11,620 --> 01:24:07,640 need to give it to the common public 2057 01:24:14,230 --> 01:24:11,630 that tail children and grandchildren or 2058 01:24:16,180 --> 01:24:14,240 great-grandchildren other humanity is in 2059 01:24:18,700 --> 01:24:16,190 danger not earth because earth will 2060 01:24:21,220 --> 01:24:18,710 exist without us that's a comment we 2061 01:24:24,250 --> 01:24:21,230 have to change that paradigm and impose 2062 01:24:26,650 --> 01:24:24,260 on human humanity rather than earth ok 2063 01:24:32,610 --> 01:24:26,660 that will be there as long as the Sun is 2064 01:24:38,110 --> 01:24:32,620 there so the question is energy is 2065 01:24:41,320 --> 01:24:38,120 pollution and energy is addiction and as 2066 01:24:44,200 --> 01:24:41,330 a Taylor are not what ed Weiler said not 2067 01:24:46,480 --> 01:24:44,210 Ed Weiler so surely had no know someone 2068 01:24:50,680 --> 01:24:46,490 and someone said no one said if someone 2069 01:24:55,060 --> 01:24:50,690 said energy consumption is equivalent to 2070 01:24:57,250 --> 01:24:55,070 prosperity now we have as you all said 9 2071 01:25:01,390 --> 01:24:57,260 billion people here it will be rising to 2072 01:25:05,800 --> 01:25:01,400 15 billion sometime how do we reconcile 2073 01:25:08,350 --> 01:25:05,810 the energy consumption to the human 2074 01:25:11,110 --> 01:25:08,360 population and how do we tell them 2075 01:25:14,950 --> 01:25:11,120 starting from the second that you go to 2076 01:25:18,030 --> 01:25:14,960 sleep to the next 24 hours how you 2077 01:25:21,220 --> 01:25:18,040 consume energy is going to actually 2078 01:25:25,150 --> 01:25:21,230 dictate how humanity is going to be in 2079 01:25:27,520 --> 01:25:25,160 the future okay okay well I'll alternate 2080 01:25:31,300 --> 01:25:27,530 to Ivan my own ideas by one on anyone 2081 01:25:33,600 --> 01:25:31,310 anyone want to address that question you 2082 01:25:36,520 --> 01:25:33,610 want to start why do you start doing I 2083 01:25:37,660 --> 01:25:36,530 think your point is well-taken but we as 2084 01:25:39,010 --> 01:25:37,670 weak 2085 01:25:41,709 --> 01:25:39,020 I think one thing to think about is that 2086 01:25:45,280 --> 01:25:41,719 when we talk about energy consumption we 2087 01:25:47,740 --> 01:25:45,290 are talking about mid to late 20th 2088 01:25:49,600 --> 01:25:47,750 century energy consumption rates that 2089 01:25:55,030 --> 01:25:49,610 haven't changed I think there's an awful 2090 01:25:57,640 --> 01:25:55,040 lot of ingenuity that can change is 2091 01:25:59,680 --> 01:25:57,650 really efficiencies that can change the 2092 01:26:01,030 --> 01:25:59,690 way energy gets used in the future but I 2093 01:26:04,150 --> 01:26:01,040 your point is well-taken about 2094 01:26:08,260 --> 01:26:04,160 population I I will say that that I mean 2095 01:26:10,770 --> 01:26:08,270 that part of it part of the effort to 2096 01:26:13,900 --> 01:26:10,780 think about managing the planet is 2097 01:26:16,060 --> 01:26:13,910 related to the fact that many of the 2098 01:26:18,160 --> 01:26:16,070 much of consumption not just for energy 2099 01:26:20,470 --> 01:26:18,170 but water and all of the fundamental 2100 01:26:23,110 --> 01:26:20,480 things that humans use to live has been 2101 01:26:24,700 --> 01:26:23,120 done you know you know in a world where 2102 01:26:27,120 --> 01:26:24,710 it seemed limitless you could be 2103 01:26:29,890 --> 01:26:27,130 incredibly inefficient and incredibly 2104 01:26:32,890 --> 01:26:29,900 use far more than you need in many 2105 01:26:35,260 --> 01:26:32,900 things and so there are a lot of easy 2106 01:26:37,930 --> 01:26:35,270 there's a lot of low-hanging fruit that 2107 01:26:39,550 --> 01:26:37,940 comes from just simply increasing 2108 01:26:41,020 --> 01:26:39,560 efficiency because things have been so 2109 01:26:42,640 --> 01:26:41,030 inefficient because it hasn't been a 2110 01:26:45,370 --> 01:26:42,650 problem it's been cheap Energy's cheap 2111 01:26:49,419 --> 01:26:45,380 in the first world water was was was 2112 01:26:51,820 --> 01:26:49,429 plentiful and so why not use it all and 2113 01:26:55,180 --> 01:26:51,830 do so many things why not over cool 2114 01:26:57,850 --> 01:26:55,190 buildings in major cities so that you 2115 01:26:59,560 --> 01:26:57,860 have to you you or overheat them with 2116 01:27:01,930 --> 01:26:59,570 lights so that you have to cool them 2117 01:27:03,250 --> 01:27:01,940 unduly in the summer time instead of not 2118 01:27:05,200 --> 01:27:03,260 overheating them with lights lots of 2119 01:27:08,800 --> 01:27:05,210 things like that that that I think can 2120 01:27:10,390 --> 01:27:08,810 be done very effectively to reduce the 2121 01:27:12,280 --> 01:27:10,400 net consumption even in the first world 2122 01:27:13,870 --> 01:27:12,290 you know there's one other aspect that I 2123 01:27:15,490 --> 01:27:13,880 think should be mentioned that we 2124 01:27:17,890 --> 01:27:15,500 haven't really mentioned yet this 2125 01:27:20,680 --> 01:27:17,900 evening that Murray's question makes me 2126 01:27:22,720 --> 01:27:20,690 want to bring up which is that we talked 2127 01:27:24,280 --> 01:27:22,730 about we we human beings are doing this 2128 01:27:26,590 --> 01:27:24,290 we human beings are doing that we have 2129 01:27:28,689 --> 01:27:26,600 to limit our energy use but we also have 2130 01:27:30,850 --> 01:27:28,699 to remember they're issues of global 2131 01:27:32,919 --> 01:27:30,860 equity and there were rich countries and 2132 01:27:35,050 --> 01:27:32,929 poor countries and we we Americans have 2133 01:27:37,060 --> 01:27:35,060 used up more than our share of energy 2134 01:27:40,570 --> 01:27:37,070 and yeah we have to learn to radically 2135 01:27:42,630 --> 01:27:40,580 curtail and transform our energy use but 2136 01:27:45,370 --> 01:27:42,640 there's also a lot of people in poor 2137 01:27:47,919 --> 01:27:45,380 underdeveloped countries that are going 2138 01:27:50,410 --> 01:27:47,929 to in this next century have the desire 2139 01:27:51,020 --> 01:27:50,420 and the right to increase their energy 2140 01:27:53,200 --> 01:27:51,030 you 2141 01:27:56,720 --> 01:27:53,210 to bring up their standard of living and 2142 01:27:58,910 --> 01:27:56,730 so it will be really smart for us 2143 01:28:02,569 --> 01:27:58,920 thinking of the global situation to help 2144 01:28:05,180 --> 01:28:02,579 them do it in a way that is less 2145 01:28:07,609 --> 01:28:05,190 globally destructive and so alternative 2146 01:28:10,370 --> 01:28:07,619 energy for for poor countries letting 2147 01:28:13,910 --> 01:28:10,380 them use more energy as is their right 2148 01:28:16,279 --> 01:28:13,920 helping them but but helping with the 2149 01:28:18,439 --> 01:28:16,289 technology and everything that goes with 2150 01:28:21,169 --> 01:28:18,449 that technology so that they can do it 2151 01:28:23,209 --> 01:28:21,179 in a way that is compatible with a 2152 01:28:25,729 --> 01:28:23,219 better future for all of us is going to 2153 01:28:28,430 --> 01:28:25,739 be really important okay and next 2154 01:28:30,740 --> 01:28:28,440 question how do you deal with the oh 2155 01:28:33,260 --> 01:28:30,750 okay there yeah then how do they deal 2156 01:28:35,810 --> 01:28:33,270 with the issue of the good side of 2157 01:28:37,160 --> 01:28:35,820 global warming I can think of people who 2158 01:28:39,919 --> 01:28:37,170 might think it's a good idea to have a 2159 01:28:42,169 --> 01:28:39,929 warmer Siberia and arctic ocean that's 2160 01:28:44,930 --> 01:28:42,179 open to shipping and Development and a 2161 01:28:46,399 --> 01:28:44,940 warm water port for Russia so how do you 2162 01:28:47,990 --> 01:28:46,409 there must be some people want more 2163 01:28:52,459 --> 01:28:48,000 global warming and how do you counter 2164 01:28:54,290 --> 01:28:52,469 them there are a number one of who may 2165 01:28:57,140 --> 01:28:54,300 be come the president's science advisor 2166 01:29:01,700 --> 01:28:57,150 fact who strongly believes it that 2167 01:29:05,510 --> 01:29:01,710 plants need more carbon dioxide so I so 2168 01:29:08,240 --> 01:29:05,520 you know I think well again I feeling 2169 01:29:10,910 --> 01:29:08,250 I'll start it but I'd be happy to what 2170 01:29:12,680 --> 01:29:10,920 other panelists say is it one has to 2171 01:29:15,140 --> 01:29:12,690 talk about all of the implications and 2172 01:29:18,669 --> 01:29:15,150 you it's really important to have an 2173 01:29:38,480 --> 01:29:18,679 informed discussion and and and and 2174 01:29:41,900 --> 01:29:40,220 anyone maybe with your especially 2175 01:29:43,370 --> 01:29:41,910 someone else's microphone he didn't hear 2176 01:29:45,560 --> 01:29:43,380 me I wasn't saying anything for whatever 2177 01:29:47,240 --> 01:29:45,570 said that's the problem that's only one 2178 01:29:49,580 --> 01:29:47,250 part of the problem right if you are 2179 01:29:51,950 --> 01:29:49,590 going to manage the globe and do it in a 2180 01:29:53,570 --> 01:29:51,960 top-down way and then if you think 2181 01:29:56,780 --> 01:29:53,580 you're going to do it in a democratic 2182 01:29:59,630 --> 01:29:56,790 way you know I think we're getting a 2183 01:30:02,690 --> 01:29:59,640 real Civic lesson in what democracy can 2184 01:30:05,150 --> 01:30:02,700 bring us in this country today so I mean 2185 01:30:08,480 --> 01:30:05,160 I think the issue is that we don't as a 2186 01:30:11,750 --> 01:30:08,490 as a people we don't know how to do that 2187 01:30:14,180 --> 01:30:11,760 and that's and yet we're facing problems 2188 01:30:15,980 --> 01:30:14,190 that have that magnitude that require 2189 01:30:18,200 --> 01:30:15,990 that probably requires some kind of 2190 01:30:20,060 --> 01:30:18,210 top-down or some kind of global decision 2191 01:30:22,340 --> 01:30:20,070 you know I mean how many people in the 2192 01:30:26,060 --> 01:30:22,350 room have taken some action to reduce 2193 01:30:28,490 --> 01:30:26,070 their carbon footprint everybody right 2194 01:30:31,160 --> 01:30:28,500 and so what's the net impact of each of 2195 01:30:33,080 --> 01:30:31,170 your actions practically nothing and yet 2196 01:30:35,000 --> 01:30:33,090 if we could do something on a global 2197 01:30:36,950 --> 01:30:35,010 level it would maybe have an impact but 2198 01:30:41,900 --> 01:30:36,960 we can't make decisions like you just 2199 01:30:44,060 --> 01:30:41,910 did to do that so I think we're we're 2200 01:30:46,040 --> 01:30:44,070 probably looking at things that have to 2201 01:30:48,110 --> 01:30:46,050 do again with more regional solutions 2202 01:30:49,760 --> 01:30:48,120 where people can make decisions and they 2203 01:30:52,070 --> 01:30:49,770 do have some impact and those things 2204 01:30:54,740 --> 01:30:52,080 growing in some way and I think that's 2205 01:30:58,040 --> 01:30:54,750 probably what's going to happen I will 2206 01:30:59,330 --> 01:30:58,050 say that you know Einstein said after 2207 01:31:00,650 --> 01:30:59,340 the first nuclear weapon was dropped 2208 01:31:03,200 --> 01:31:00,660 that everything's changed saved the way 2209 01:31:04,760 --> 01:31:03,210 we think and we still think the same way 2210 01:31:06,410 --> 01:31:04,770 even then there's a clear example of a 2211 01:31:09,230 --> 01:31:06,420 global threat that we have an address 2212 01:31:10,790 --> 01:31:09,240 well let me just say that the way I 2213 01:31:13,670 --> 01:31:10,800 distill that question that you asked is 2214 01:31:16,760 --> 01:31:13,680 not about ports or better agriculture 2215 01:31:20,300 --> 01:31:16,770 which is specious anyway it's really the 2216 01:31:22,360 --> 01:31:20,310 question what's good for me or what's 2217 01:31:25,010 --> 01:31:22,370 good for us yeah 2218 01:31:26,270 --> 01:31:25,020 and I think what's good for us it's a 2219 01:31:28,010 --> 01:31:26,280 very different dialogue and then you 2220 01:31:29,870 --> 01:31:28,020 have to get to the systems question of 2221 01:31:31,280 --> 01:31:29,880 looking at the earth physicist and you 2222 01:31:32,600 --> 01:31:31,290 have to think of us so stated was 2223 01:31:34,220 --> 01:31:32,610 pointing out this is a real concern to 2224 01:31:35,930 --> 01:31:34,230 me especially in this country now where 2225 01:31:39,290 --> 01:31:35,940 policies being driven by me instead of 2226 01:31:40,820 --> 01:31:39,300 us in on just a national level the AH 2227 01:31:42,800 --> 01:31:40,830 step we should be thinking about is not 2228 01:31:44,650 --> 01:31:42,810 us in the United States or us the US 2229 01:31:47,300 --> 01:31:44,660 should be global and that's never 2230 01:31:49,250 --> 01:31:47,310 happened and but it needs to happen and 2231 01:31:49,820 --> 01:31:49,260 I understand I said it before but it's 2232 01:31:53,600 --> 01:31:49,830 not just 2233 01:31:55,970 --> 01:31:53,610 human being yeah you know it's about 2234 01:31:58,190 --> 01:31:55,980 global biodiversity because a world 2235 01:32:00,110 --> 01:31:58,200 without bass without bees and it's a 2236 01:32:02,570 --> 01:32:00,120 world without fruit and that's going to 2237 01:32:04,610 --> 01:32:02,580 be an icky world I like fruit yeah and 2238 01:32:07,370 --> 01:32:04,620 and the oceans probably have already 2239 01:32:10,340 --> 01:32:07,380 begun to be impacted more than any other 2240 01:32:12,050 --> 01:32:10,350 area and and and and so we're 2241 01:32:13,430 --> 01:32:12,060 dramatically affecting life in the 2242 01:32:16,280 --> 01:32:13,440 oceans already so from a certain 2243 01:32:18,680 --> 01:32:16,290 perspective on a certain shorter time 2244 01:32:22,190 --> 01:32:18,690 scale there would be regional winners 2245 01:32:24,710 --> 01:32:22,200 and losers but from a larger and longer 2246 01:32:27,230 --> 01:32:24,720 term perspective they're not going to be 2247 01:32:29,270 --> 01:32:27,240 any winners if we push our global 2248 01:32:31,250 --> 01:32:29,280 systems beyond safe boundaries 2249 01:32:32,840 --> 01:32:31,260 okay well we'll try to take some more 2250 01:32:34,850 --> 01:32:32,850 questions in what pride debriefer but 2251 01:32:36,440 --> 01:32:34,860 well go a little long I think it's if 2252 01:32:38,690 --> 01:32:36,450 they're long as their audience questions 2253 01:32:41,660 --> 01:32:38,700 yeah the first thing about I've got some 2254 01:32:43,670 --> 01:32:41,670 home maintenance and repair issues this 2255 01:32:45,230 --> 01:32:43,680 week I just wonder dr. Grunsfeld with 2256 01:32:46,430 --> 01:32:45,240 that third time you went up to repair 2257 01:32:49,220 --> 01:32:46,440 the Hubble that thing's still under 2258 01:32:51,530 --> 01:32:49,230 warranty the water ran out actually five 2259 01:32:55,370 --> 01:32:51,540 years afterwards but I will still 2260 01:32:57,320 --> 01:32:55,380 service it all right actually the good 2261 01:32:58,760 --> 01:32:57,330 news is that you know we thought it 2262 01:33:00,350 --> 01:32:58,770 would last about five more years after 2263 01:33:03,620 --> 01:33:00,360 the mission and everything's going great 2264 01:33:06,260 --> 01:33:03,630 and so with that and a very calm solar 2265 01:33:08,900 --> 01:33:06,270 cycle it's actually important for the 2266 01:33:10,760 --> 01:33:08,910 earth to publish should continue operate 2267 01:33:12,770 --> 01:33:10,770 in another five or so years before the 2268 01:33:15,890 --> 01:33:12,780 next thing that we can anticipate will 2269 01:33:17,450 --> 01:33:15,900 happen to it let me in that regard so 2270 01:33:20,390 --> 01:33:17,460 the James Webb Space Telescope is going 2271 01:33:21,980 --> 01:33:20,400 up next year October 20 and and so 2272 01:33:23,630 --> 01:33:21,990 they'll run in tandem and there's a 2273 01:33:25,520 --> 01:33:23,640 budget and there's budget funds to keep 2274 01:33:28,460 --> 01:33:25,530 the Hubble going for well there five 2275 01:33:29,990 --> 01:33:28,470 years who knows that that I mean what 2276 01:33:32,060 --> 01:33:30,000 big question because people may say we 2277 01:33:33,530 --> 01:33:32,070 have the James Webb so turn off Kabul 2278 01:33:36,230 --> 01:33:33,540 but scientifically it's very exciting 2279 01:33:37,790 --> 01:33:36,240 temple okay thank you I think I'm an 2280 01:33:41,750 --> 01:33:37,800 only allowed ask one just because we 2281 01:33:43,490 --> 01:33:41,760 have so many next thanks yeah I wanted 2282 01:33:45,560 --> 01:33:43,500 to say a quick hi to my daughter Marissa 2283 01:33:49,160 --> 01:33:45,570 who was in Argonne watching this dream 2284 01:33:50,570 --> 01:33:49,170 and told me about this but I felt like 2285 01:33:54,560 --> 01:33:50,580 maybe you were flirting with this a 2286 01:33:57,260 --> 01:33:54,570 little bit is it crazy to think that if 2287 01:34:00,350 --> 01:33:57,270 we don't find ways to protect you know 2288 01:34:02,900 --> 01:34:00,360 our fragile planet that the planet will 2289 01:34:03,649 --> 01:34:02,910 figure out ways to handle it for us like 2290 01:34:05,569 --> 01:34:03,659 I'm 2291 01:34:08,169 --> 01:34:05,579 you know pandemics things like that I 2292 01:34:10,669 --> 01:34:08,179 mean do you worry about that a lot 2293 01:34:14,089 --> 01:34:10,679 any what that I'm not gonna touch that 2294 01:34:21,290 --> 01:34:14,099 when you wouldn't I do worry about that 2295 01:34:26,899 --> 01:34:21,300 I mean it's certainly true that that we 2296 01:34:30,199 --> 01:34:26,909 are being challenged there are problems 2297 01:34:31,810 --> 01:34:30,209 it's it you know biologically we may be 2298 01:34:34,310 --> 01:34:31,820 able to survive 2299 01:34:36,799 --> 01:34:34,320 climate the the worst parts of climate 2300 01:34:38,479 --> 01:34:36,809 change but what is really important and 2301 01:34:40,790 --> 01:34:38,489 it's relevant I think what Hillary said 2302 01:34:42,799 --> 01:34:40,800 is there a incredible socio-political 2303 01:34:46,159 --> 01:34:42,809 impacts that are going to produce 2304 01:34:47,839 --> 01:34:46,169 tensions and Wars and and for scarce 2305 01:34:53,239 --> 01:34:47,849 resources not just water but other 2306 01:34:57,399 --> 01:34:53,249 things energy and space land and food 2307 01:35:00,379 --> 01:34:57,409 and that so that I personally think the 2308 01:35:02,000 --> 01:35:00,389 the greatest danger to humanity is the 2309 01:35:03,830 --> 01:35:02,010 socio-political implications the 2310 01:35:05,299 --> 01:35:03,840 tensions the international tensions that 2311 01:35:09,229 --> 01:35:05,309 will result from these things which 2312 01:35:11,659 --> 01:35:09,239 could lead to devastation via global 2313 01:35:15,379 --> 01:35:11,669 Wars I think that's a that's a in my own 2314 01:35:17,299 --> 01:35:15,389 mind of a big bigger problem this 2315 01:35:19,069 --> 01:35:17,309 question is mostly directed to Jane but 2316 01:35:20,600 --> 01:35:19,079 I'd like to hear all your views on it 2317 01:35:22,489 --> 01:35:20,610 what do you think of the carbon 2318 01:35:24,500 --> 01:35:22,499 sequestration technique of locking the 2319 01:35:25,850 --> 01:35:24,510 co2 up and carbonate it's obviously 2320 01:35:27,620 --> 01:35:25,860 still a band-aid solution because 2321 01:35:29,419 --> 01:35:27,630 eventually we'll run out of space put 2322 01:35:31,790 --> 01:35:29,429 all the carbonate but as far as 2323 01:35:32,989 --> 01:35:31,800 band-aids go what do you think of it and 2324 01:35:35,569 --> 01:35:32,999 if you don't like it what's your 2325 01:35:39,560 --> 01:35:35,579 favorite sequestration technique I don't 2326 01:35:41,989 --> 01:35:39,570 think like is kind of the way like I 2327 01:35:44,779 --> 01:35:41,999 think it's just slow you know I think 2328 01:35:48,109 --> 01:35:44,789 these these carbonate is a great way to 2329 01:35:50,449 --> 01:35:48,119 go and also can serve as a buffer in the 2330 01:35:52,429 --> 01:35:50,459 ocean and I think those are really great 2331 01:35:54,739 --> 01:35:52,439 technologies but and some of them are 2332 01:35:57,319 --> 01:35:54,749 even downhill reactions you would be 2333 01:35:59,899 --> 01:35:57,329 able to react more than I want react 2334 01:36:03,319 --> 01:35:59,909 sorry you'll be able to discuss that 2335 01:36:06,469 --> 01:36:03,329 more than I would but the fact is if 2336 01:36:08,719 --> 01:36:06,479 they're either Maps limited or rate 2337 01:36:11,299 --> 01:36:08,729 limited you know you can't you just 2338 01:36:13,669 --> 01:36:11,309 can't get things moving fast enough 2339 01:36:14,870 --> 01:36:13,679 either because you can't get enough mass 2340 01:36:16,620 --> 01:36:14,880 involved in the reaction where the 2341 01:36:21,120 --> 01:36:16,630 reaction is too slow 2342 01:36:23,669 --> 01:36:21,130 and I think that's that's where I have I 2343 01:36:25,620 --> 01:36:23,679 have a lot of doubt about whether any of 2344 01:36:29,040 --> 01:36:25,630 the carbon sequestration technologies 2345 01:36:34,890 --> 01:36:29,050 that we're talking about now will pan 2346 01:36:38,220 --> 01:36:34,900 out in the long term as being is being 2347 01:36:39,810 --> 01:36:38,230 meaningful and scale wise so that's why 2348 01:36:42,270 --> 01:36:39,820 people are starting to talk about air 2349 01:36:44,490 --> 01:36:42,280 capture actually filtering out of the 2350 01:36:46,590 --> 01:36:44,500 air and I and then you still have a 2351 01:36:48,450 --> 01:36:46,600 problem because although people think 2352 01:36:49,890 --> 01:36:48,460 that like you said before as well this 2353 01:36:51,629 --> 01:36:49,900 is just natural we're just going back 2354 01:36:53,399 --> 01:36:51,639 you're actually not going back because 2355 01:36:55,200 --> 01:36:53,409 you have still to put the co2 someplace 2356 01:36:57,149 --> 01:36:55,210 someplace and so I think well I 2357 01:36:59,820 --> 01:36:57,159 personally think what we'll be doing is 2358 01:37:01,919 --> 01:36:59,830 taking it out of the air and putting it 2359 01:37:04,350 --> 01:37:01,929 into the deep ocean sacrificing the deep 2360 01:37:05,240 --> 01:37:04,360 ocean that's what I think will happen in 2361 01:37:07,800 --> 01:37:05,250 the long term 2362 01:37:08,939 --> 01:37:07,810 okay well we'll proceed but I want to 2363 01:37:12,479 --> 01:37:08,949 try and get through as many questions as 2364 01:37:15,060 --> 01:37:12,489 we can yes okay um everybody's heard 2365 01:37:17,160 --> 01:37:15,070 about Venus having twenty through two 2366 01:37:20,610 --> 01:37:17,170 hundred thousand times as much co2 as 2367 01:37:24,750 --> 01:37:20,620 the earth and being warm enough stool to 2368 01:37:27,330 --> 01:37:24,760 melt lead nobody talks about Mars having 2369 01:37:31,800 --> 01:37:27,340 20 times the co2 is the earth and can't 2370 01:37:36,000 --> 01:37:31,810 melt ice anyhow in the climate near the 2371 01:37:39,689 --> 01:37:36,010 ground by rudolf geiger translated from 2372 01:37:46,129 --> 01:37:39,699 the German 1951 he points out how how 2373 01:37:50,490 --> 01:37:46,139 nonsensical the co2 greenhouse gas 2374 01:37:53,640 --> 01:37:50,500 theory is because water vapors like six 2375 01:37:58,709 --> 01:37:53,650 to twenty times the greenhouse gases co2 2376 01:38:00,930 --> 01:37:58,719 and also nobody talks about by a higher 2377 01:38:02,340 --> 01:38:00,940 level okay so so do you have a question 2378 01:38:03,840 --> 01:38:02,350 I mean yeah that's what a lot of people 2379 01:38:05,810 --> 01:38:03,850 do talk about all of these things okay 2380 01:38:08,580 --> 01:38:05,820 when the climate scientists actually 2381 01:38:10,979 --> 01:38:08,590 spend their lives worrying about just 2382 01:38:15,419 --> 01:38:10,989 these questions whether that clear some 2383 01:38:20,040 --> 01:38:15,429 secret no but by Sir two was supposed to 2384 01:38:24,180 --> 01:38:20,050 show sustainability and they had to bail 2385 01:38:26,580 --> 01:38:24,190 out because of low oxygen after a short 2386 01:38:29,520 --> 01:38:26,590 period of time because they're 2387 01:38:30,629 --> 01:38:29,530 generating co2 at a hundred times the 2388 01:38:35,820 --> 01:38:30,639 grade of 2389 01:38:38,879 --> 01:38:35,830 of the the earth is doing it okay once 2390 01:38:41,310 --> 01:38:38,889 again so you made a statement I don't 2391 01:38:45,379 --> 01:38:41,320 want to do also jesting just to correct 2392 01:38:49,830 --> 01:38:45,389 one thing the atmosphere of Mars 2393 01:38:52,950 --> 01:38:49,840 perfectly validates our ideas about co2 2394 01:38:56,609 --> 01:38:52,960 it's a very very thin atmosphere and the 2395 01:38:59,520 --> 01:38:56,619 fact that Venus and Mars have surface 2396 01:39:02,850 --> 01:38:59,530 temperatures which our climate models 2397 01:39:04,620 --> 01:39:02,860 predict very very well with our basic 2398 01:39:07,340 --> 01:39:04,630 understanding of the absorption of co2 2399 01:39:10,080 --> 01:39:07,350 and other gases actually validates our 2400 01:39:12,149 --> 01:39:10,090 understanding of the way climate works 2401 01:39:13,830 --> 01:39:12,159 now on earth and will work in the future 2402 01:39:16,020 --> 01:39:13,840 this is what I actually do for a living 2403 01:39:19,800 --> 01:39:16,030 is models of these other atmospheres in 2404 01:39:23,479 --> 01:39:19,810 and it works rather well and it's one 2405 01:39:26,580 --> 01:39:23,489 way that we know that our physics of how 2406 01:39:28,709 --> 01:39:26,590 radiation interacts with atmosphere of 2407 01:39:29,160 --> 01:39:28,719 gases is basically correct okay next 2408 01:39:31,520 --> 01:39:29,170 question 2409 01:39:34,350 --> 01:39:31,530 I take apart miss for blue marble space 2410 01:39:36,780 --> 01:39:34,360 James Lovelock the originator of the 2411 01:39:38,490 --> 01:39:36,790 Gaia hypothesis has recently articulated 2412 01:39:39,899 --> 01:39:38,500 that we don't need sustainable 2413 01:39:42,209 --> 01:39:39,909 development what we need is a 2414 01:39:44,340 --> 01:39:42,219 sustainable retreat and what this says 2415 01:39:46,890 --> 01:39:44,350 to me it's sort of the ends between 2416 01:39:48,890 --> 01:39:46,900 hubris and humility the hubris side we 2417 01:39:51,090 --> 01:39:48,900 have a strong belief in human technology 2418 01:39:52,470 --> 01:39:51,100 geoengineering or other things to be 2419 01:39:54,479 --> 01:39:52,480 able to overcome these environmental 2420 01:39:57,000 --> 01:39:54,489 problems and I'm the humility side it's 2421 01:39:58,950 --> 01:39:57,010 maybe there are a lot of uncertainties 2422 01:40:00,570 --> 01:39:58,960 and maybe we need to step back and maybe 2423 01:40:02,250 --> 01:40:00,580 we need to think about reducing our 2424 01:40:03,570 --> 01:40:02,260 lifestyle in the United States not 2425 01:40:04,979 --> 01:40:03,580 necessarily bringing everyone else up to 2426 01:40:06,300 --> 01:40:04,989 our standard but maybe we need to 2427 01:40:08,430 --> 01:40:06,310 sacrifice Oh what are your thoughts on 2428 01:40:09,149 --> 01:40:08,440 that I think you're absolutely right 2429 01:40:11,370 --> 01:40:09,159 it's both 2430 01:40:13,680 --> 01:40:11,380 we need restraint and innovation and 2431 01:40:15,930 --> 01:40:13,690 there are people that believe in only 2432 01:40:19,800 --> 01:40:15,940 one and not the other and they're both 2433 01:40:23,459 --> 01:40:19,810 wrong and and I think I think I think 2434 01:40:24,780 --> 01:40:23,469 the point so that Jane is making in what 2435 01:40:26,640 --> 01:40:24,790 President Obama used to say which is 2436 01:40:28,320 --> 01:40:26,650 true which is that restraint doesn't 2437 01:40:31,200 --> 01:40:28,330 mean a worse quality of life you can 2438 01:40:32,729 --> 01:40:31,210 just you can find better ways to create 2439 01:40:35,220 --> 01:40:32,739 new technologies that allow you to live 2440 01:40:37,169 --> 01:40:35,230 better with less and so it isn't always 2441 01:40:39,330 --> 01:40:37,179 just a matter of doing without it's a 2442 01:40:41,399 --> 01:40:39,340 matter of finding way ways to do with 2443 01:40:41,930 --> 01:40:41,409 less and do more with less often I think 2444 01:40:43,790 --> 01:40:41,940 that's 2445 01:40:46,729 --> 01:40:43,800 an important thing that and technology 2446 01:40:48,500 --> 01:40:46,739 is the key I think I think you could get 2447 01:40:50,510 --> 01:40:48,510 down another layer in some of this that 2448 01:40:53,479 --> 01:40:50,520 we haven't done there's bang for the 2449 01:40:55,790 --> 01:40:53,489 buck on efficiency for example in we 2450 01:40:58,370 --> 01:40:55,800 have no really replacement for gasoline 2451 01:41:01,209 --> 01:40:58,380 and mobile transportation for the most 2452 01:41:05,240 --> 01:41:01,219 part I mean while biofuel might become 2453 01:41:07,100 --> 01:41:05,250 carbon neutral it's not now and there is 2454 01:41:09,140 --> 01:41:07,110 it's going to be limited by biomass so 2455 01:41:10,970 --> 01:41:09,150 this is where efficiency and 2456 01:41:12,590 --> 01:41:10,980 conservation really make a huge 2457 01:41:14,840 --> 01:41:12,600 difference because we don't have a 2458 01:41:17,510 --> 01:41:14,850 technology to replace it could we 2459 01:41:21,830 --> 01:41:17,520 theoretically decarbonize electricity 2460 01:41:26,660 --> 01:41:21,840 yes we can we know how to do it so there 2461 01:41:28,400 --> 01:41:26,670 uses of electricity might expand and if 2462 01:41:30,709 --> 01:41:28,410 we can still create enough electricity 2463 01:41:32,900 --> 01:41:30,719 without carbon dioxide we'll be fine it 2464 01:41:34,670 --> 01:41:32,910 doesn't matter but if you don't have the 2465 01:41:35,720 --> 01:41:34,680 technology then efficiency becomes 2466 01:41:37,790 --> 01:41:35,730 important and I don't think we've 2467 01:41:39,170 --> 01:41:37,800 thought that way you know you know we 2468 01:41:40,189 --> 01:41:39,180 haven't parsed the problem like that'd 2469 01:41:41,720 --> 01:41:40,199 be enough 2470 01:41:44,120 --> 01:41:41,730 I have one other thing to add to this 2471 01:41:46,280 --> 01:41:44,130 idea and I think it's important to 2472 01:41:49,700 --> 01:41:46,290 remember at the risk of sounding like a 2473 01:41:51,470 --> 01:41:49,710 chemist time and human evolution is a 2474 01:41:53,930 --> 01:41:51,480 one-way reaction we don't get to go 2475 01:41:56,930 --> 01:41:53,940 backwards we can make the forward 2476 01:41:58,280 --> 01:41:56,940 reaction different but we can't turn it 2477 01:42:00,950 --> 01:41:58,290 around and put the genie back in the 2478 01:42:03,380 --> 01:42:00,960 bottle on this and so we have to look 2479 01:42:07,820 --> 01:42:03,390 forwards and not think about it as 2480 01:42:10,130 --> 01:42:07,830 retreat excellent okay a few more yep I 2481 01:42:11,840 --> 01:42:10,140 like to end by nine which is about 15 2482 01:42:13,790 --> 01:42:11,850 minutes longer than I planned just so 2483 01:42:14,660 --> 01:42:13,800 you know if you're here I don't make it 2484 01:42:17,180 --> 01:42:14,670 quick 2485 01:42:19,160 --> 01:42:17,190 so I'm now more aware than ever the 2486 01:42:21,110 --> 01:42:19,170 current unsustainable trajectory of our 2487 01:42:23,180 --> 01:42:21,120 society and through that I sort of feel 2488 01:42:24,800 --> 01:42:23,190 like a responsibility to do something 2489 01:42:26,840 --> 01:42:24,810 about it because if I'm going to be 2490 01:42:29,600 --> 01:42:26,850 doing work on this planet I'd like to 2491 01:42:32,510 --> 01:42:29,610 help make the planet work so I'm just 2492 01:42:36,770 --> 01:42:32,520 curious how do I sign up for this 2493 01:42:43,189 --> 01:42:36,780 program and become a steward in the near 2494 01:42:45,709 --> 01:42:43,199 term send me an email all right well in 2495 01:42:47,660 --> 01:42:45,719 tactics yeah there we go you know let me 2496 01:42:49,160 --> 01:42:47,670 say as an individual I mean I'll talk 2497 01:42:50,930 --> 01:42:49,170 about some of the things that I've done 2498 01:42:53,180 --> 01:42:50,940 I mean there are a lot of individual 2499 01:42:54,700 --> 01:42:53,190 choices you can make and I'll you know 2500 01:42:56,470 --> 01:42:54,710 alone your choices are not going to 2501 01:42:59,110 --> 01:42:56,480 big impact on the planet only when we 2502 01:43:00,880 --> 01:42:59,120 are collectively but really for at all 2503 01:43:03,729 --> 01:43:00,890 levels about decisions you make every 2504 01:43:05,860 --> 01:43:03,739 day about decisions that our elected 2505 01:43:07,900 --> 01:43:05,870 officials make about decisions the UN 2506 01:43:10,240 --> 01:43:07,910 tries to make collectively that other 2507 01:43:12,970 --> 01:43:10,250 nations make those decisions that make a 2508 01:43:14,950 --> 01:43:12,980 difference so when you you know let's 2509 01:43:16,750 --> 01:43:14,960 say you decide to go buy a car you go 2510 01:43:18,880 --> 01:43:16,760 into the dealer and at about the same 2511 01:43:21,430 --> 01:43:18,890 price you know you can get an f250 2512 01:43:23,680 --> 01:43:21,440 double-wide or you can buy an electric 2513 01:43:25,810 --> 01:43:23,690 car and you know you get to make a 2514 01:43:27,670 --> 01:43:25,820 choice and you know the good thing is to 2515 01:43:30,250 --> 01:43:27,680 try and educate yourself and make a wise 2516 01:43:31,660 --> 01:43:30,260 decision with whatever criteria you have 2517 01:43:33,220 --> 01:43:31,670 if you're going to haul manure you're 2518 01:43:35,320 --> 01:43:33,230 probably going to get the truck if you 2519 01:43:37,120 --> 01:43:35,330 want to try and get basic transportation 2520 01:43:39,250 --> 01:43:37,130 and have the least impact on the planet 2521 01:43:41,440 --> 01:43:39,260 you know it's the electric car when you 2522 01:43:43,630 --> 01:43:41,450 eat there's a huge energy difference 2523 01:43:46,240 --> 01:43:43,640 between eating vegetables chicken and 2524 01:43:48,520 --> 01:43:46,250 beef for instance and so you can decide 2525 01:43:51,310 --> 01:43:48,530 how often you eat what of webs you and 2526 01:43:53,530 --> 01:43:51,320 where it comes from that has you know a 2527 01:43:54,940 --> 01:43:53,540 large energy difference now it's going 2528 01:43:57,520 --> 01:43:54,950 to make you feel better that you're 2529 01:43:59,320 --> 01:43:57,530 helping yours and if you're if you make 2530 01:44:01,240 --> 01:43:59,330 educated decisions and then also 2531 01:44:03,070 --> 01:44:01,250 influence your friends and neighbors and 2532 01:44:04,540 --> 01:44:03,080 maybe become you know an elected 2533 01:44:07,420 --> 01:44:04,550 official you can have more and never 2534 01:44:09,910 --> 01:44:07,430 increase in influence and we and I that 2535 01:44:11,050 --> 01:44:09,920 well what is it yeah I think one thing I 2536 01:44:13,120 --> 01:44:11,060 think is really important that people 2537 01:44:14,890 --> 01:44:13,130 don't talk about too much or people you 2538 01:44:17,590 --> 01:44:14,900 need to talk about is avoiding 2539 01:44:19,090 --> 01:44:17,600 groupthink I think one of the things 2540 01:44:21,880 --> 01:44:19,100 that people are beginning to show is 2541 01:44:23,740 --> 01:44:21,890 that they that people tend to believe 2542 01:44:26,229 --> 01:44:23,750 information from people they think are 2543 01:44:28,030 --> 01:44:26,239 part of their tribe or their group and I 2544 01:44:29,920 --> 01:44:28,040 think what we what we're doing is 2545 01:44:31,780 --> 01:44:29,930 propagating a lot of information on all 2546 01:44:36,660 --> 01:44:31,790 sides of this problem that are not that 2547 01:44:38,950 --> 01:44:36,670 that isn't really true you know the the 2548 01:44:42,280 --> 01:44:38,960 that what was the big pipeline the 2549 01:44:44,590 --> 01:44:42,290 Keystone pipeline you know was going to 2550 01:44:46,690 --> 01:44:44,600 be game over and everybody blond on to 2551 01:44:48,310 --> 01:44:46,700 get Keystone pipeline Keystone pipeline 2552 01:44:49,870 --> 01:44:48,320 a year of emissions from Keystone 2553 01:44:52,660 --> 01:44:49,880 pipeline associated without a ten 2554 01:44:54,700 --> 01:44:52,670 minutes of carbon dioxide from China's 2555 01:44:56,650 --> 01:44:54,710 coal-fired plants you've got to be able 2556 01:44:59,260 --> 01:44:56,660 to put things in the right context and 2557 01:45:01,540 --> 01:44:59,270 understand that and so I think we have 2558 01:45:03,250 --> 01:45:01,550 as a society as an individual you have 2559 01:45:05,229 --> 01:45:03,260 an obligation to go beyond what 2560 01:45:07,300 --> 01:45:05,239 everybody's telling you and figure it 2561 01:45:08,390 --> 01:45:07,310 out figure out what the right way to 2562 01:45:10,580 --> 01:45:08,400 think about this is 2563 01:45:13,760 --> 01:45:10,590 but as scientist me I think as Hillary 2564 01:45:15,380 --> 01:45:13,770 saying I think that it may be it's not 2565 01:45:18,110 --> 01:45:15,390 advocacy but what we need to do is 2566 01:45:20,120 --> 01:45:18,120 translate in an effective way so the 2567 01:45:20,450 --> 01:45:20,130 cover so the public can figure things 2568 01:45:21,740 --> 01:45:20,460 out 2569 01:45:24,350 --> 01:45:21,750 so they do have access to information 2570 01:45:27,709 --> 01:45:24,360 that's understandable and clear I mean 2571 01:45:29,959 --> 01:45:27,719 yeah here's one example it takes 703 2572 01:45:32,600 --> 01:45:29,969 tons of water to prove the feed for a 2573 01:45:34,160 --> 01:45:32,610 car that produces one hamburger for 2574 01:45:36,740 --> 01:45:34,170 example is the kind of kind of 2575 01:45:41,060 --> 01:45:36,750 information that is digestible literally 2576 01:45:43,280 --> 01:45:41,070 if not metaphorically and and and and I 2577 01:45:46,520 --> 01:45:43,290 bet bet but but I didn't plan that that 2578 01:45:48,380 --> 01:45:46,530 just came but um but no the point is so 2579 01:45:49,700 --> 01:45:48,390 that we I think the real thing that if 2580 01:45:51,680 --> 01:45:49,710 the public is going to be able to act 2581 01:45:53,720 --> 01:45:51,690 they have to have access to information 2582 01:45:55,669 --> 01:45:53,730 and not just raw information but 2583 01:45:58,970 --> 01:45:55,679 information that it's comprehensible 2584 01:46:01,490 --> 01:45:58,980 clear and complete and and then we can 2585 01:46:04,370 --> 01:46:01,500 expect people to act responsibly another 2586 01:46:06,320 --> 01:46:04,380 thing I would say is I don't you know 2587 01:46:08,180 --> 01:46:06,330 don't give up don't assume we're on an 2588 01:46:10,310 --> 01:46:08,190 unsustainable path history is very 2589 01:46:11,870 --> 01:46:10,320 nonlinear in the future will be - I 2590 01:46:13,340 --> 01:46:11,880 recently did a project where I spent a 2591 01:46:14,930 --> 01:46:13,350 lot of time reading predictions of the 2592 01:46:17,750 --> 01:46:14,940 future written a couple hundred years 2593 01:46:20,090 --> 01:46:17,760 ago read about now and all these smart 2594 01:46:22,370 --> 01:46:20,100 people got to come nobody gets it right 2595 01:46:24,709 --> 01:46:22,380 nobody and I'm very confident that none 2596 01:46:26,090 --> 01:46:24,719 of us can really predict the world of a 2597 01:46:28,820 --> 01:46:26,100 hundred or two hundred years from now 2598 01:46:30,200 --> 01:46:28,830 not climate models not modelers not 2599 01:46:32,270 --> 01:46:30,210 economists because there are 2600 01:46:35,419 --> 01:46:32,280 game-changers not just technical 2601 01:46:37,970 --> 01:46:35,429 breakthroughs but human beings also go 2602 01:46:39,680 --> 01:46:37,980 through nonlinearities and phase changes 2603 01:46:43,310 --> 01:46:39,690 in the way we think and history shows 2604 01:46:45,080 --> 01:46:43,320 this as well so yeah that make your you 2605 01:46:46,610 --> 01:46:45,090 know it's about your personal choices of 2606 01:46:48,790 --> 01:46:46,620 the kind that John mentioned it's about 2607 01:46:51,200 --> 01:46:48,800 communicating with your representatives 2608 01:46:53,390 --> 01:46:51,210 because at some level they still do 2609 01:46:56,890 --> 01:46:53,400 represent us and they they they listen 2610 01:46:59,120 --> 01:46:56,900 they succumb and but also communicate 2611 01:47:01,130 --> 01:46:59,130 communicate with your fellow humans you 2612 01:47:03,200 --> 01:47:01,140 know education communicators that 2613 01:47:04,490 --> 01:47:03,210 representatives and personal choices and 2614 01:47:07,370 --> 01:47:04,500 it does add up and make a real 2615 01:47:09,140 --> 01:47:07,380 difference yeah we're gonna add one of 2616 01:47:10,790 --> 01:47:09,150 those you know big nonlinearities that 2617 01:47:12,020 --> 01:47:10,800 we can't predict where we have a 2618 01:47:13,430 --> 01:47:12,030 congress that works together and 2619 01:47:15,080 --> 01:47:13,440 actually gets yeah yeah I know that's 2620 01:47:17,720 --> 01:47:15,090 why I admit that I think that's too 2621 01:47:19,650 --> 01:47:17,730 science fiction I would put it just one 2622 01:47:21,240 --> 01:47:19,660 thing I would put it in these terms a 2623 01:47:24,390 --> 01:47:21,250 serious send me an email we can talk 2624 01:47:26,160 --> 01:47:24,400 more but have the conversation and the 2625 01:47:28,620 --> 01:47:26,170 conversations not always all that easy 2626 01:47:30,540 --> 01:47:28,630 but find some piece of the conversation 2627 01:47:32,850 --> 01:47:30,550 that you can that you can align with 2628 01:47:35,550 --> 01:47:32,860 someone on and talk about it we don't 2629 01:47:37,020 --> 01:47:35,560 we've gotten bad at having these 2630 01:47:39,210 --> 01:47:37,030 conversations because they're really 2631 01:47:41,220 --> 01:47:39,220 their conversations about values what do 2632 01:47:43,590 --> 01:47:41,230 we care about those conversations are 2633 01:47:45,180 --> 01:47:43,600 challenging but they're very much a part 2634 01:47:47,640 --> 01:47:45,190 of how we're going to change this we 2635 01:47:48,930 --> 01:47:47,650 exactly we need to do that and and not 2636 01:47:52,770 --> 01:47:48,940 trust anyone who calls themselves with 2637 01:47:53,880 --> 01:47:52,780 futures too but now the person that the 2638 01:47:55,800 --> 01:47:53,890 microphone is going to really hate me 2639 01:47:58,260 --> 01:47:55,810 right now because what I'm going to say 2640 01:47:59,700 --> 01:47:58,270 to you is I want to ask the woman in the 2641 01:48:01,080 --> 01:47:59,710 back to be able to ask questions we 2642 01:48:02,790 --> 01:48:01,090 haven't had a single question from a 2643 01:48:04,140 --> 01:48:02,800 woman and there's only one woman here 2644 01:48:06,800 --> 01:48:04,150 and the line so if you'd asked the 2645 01:48:10,320 --> 01:48:06,810 question it would be the last question 2646 01:48:12,150 --> 01:48:10,330 okay I just want to say this is kind of 2647 01:48:15,180 --> 01:48:12,160 a follow up to what the young man was 2648 01:48:17,490 --> 01:48:15,190 just talking about I I think what's 2649 01:48:19,830 --> 01:48:17,500 really encouraging because I'm an 2650 01:48:21,840 --> 01:48:19,840 eternal optimist my background is in 2651 01:48:24,990 --> 01:48:21,850 political science and environmental 2652 01:48:28,350 --> 01:48:25,000 planning and that I think what we need 2653 01:48:30,690 --> 01:48:28,360 is leadership and I think what happened 2654 01:48:33,930 --> 01:48:30,700 with the science March this last weekend 2655 01:48:38,000 --> 01:48:33,940 shows that a lot of the public are ready 2656 01:48:41,880 --> 01:48:38,010 to support scientist and to marry and 2657 01:48:43,050 --> 01:48:41,890 somehow on many issues and move forward 2658 01:48:46,590 --> 01:48:43,060 and so I just want to encourage 2659 01:48:48,300 --> 01:48:46,600 everybody here to kind of engage in that 2660 01:48:50,790 --> 01:48:48,310 manner I'm sure there are many people 2661 01:48:53,450 --> 01:48:50,800 that were at least interested if not 2662 01:48:56,010 --> 01:48:53,460 we're there and so I would ask I guess 2663 01:48:58,410 --> 01:48:56,020 again with the planet works that you're 2664 01:49:00,000 --> 01:48:58,420 trying to kind of have a prototype and 2665 01:49:03,600 --> 01:49:00,010 maybe take it to other states and other 2666 01:49:04,890 --> 01:49:03,610 universities I think that the greatest 2667 01:49:07,350 --> 01:49:04,900 thing that we can do even though we're 2668 01:49:10,260 --> 01:49:07,360 not scientists is to back you up because 2669 01:49:12,870 --> 01:49:10,270 you have some of the knowledge and we 2670 01:49:14,940 --> 01:49:12,880 can maybe help explore other avenues as 2671 01:49:17,040 --> 01:49:14,950 well so I want to thank you all for your 2672 01:49:17,460 --> 01:49:17,050 voices and the dialogue that's what we 2673 01:49:20,130 --> 01:49:17,470 need 2674 01:49:23,730 --> 01:49:20,140 well thank you for that and and I think 2675 01:49:25,470 --> 01:49:23,740 I think yeah that is a is a great way 2676 01:49:26,730 --> 01:49:25,480 that was a great last question and even 2677 01:49:28,110 --> 01:49:26,740 though is it not a question it was a 2678 01:49:30,390 --> 01:49:28,120 great a great way to put this in 2679 01:49:31,360 --> 01:49:30,400 perspective and we have to thank you for 2680 01:49:33,190 --> 01:49:31,370 support support 2681 01:49:35,290 --> 01:49:33,200 but I will say one of the reasons that 2682 01:49:38,050 --> 01:49:35,300 we that you know planet works as 2683 01:49:39,550 --> 01:49:38,060 interested in managing things and that 2684 01:49:42,760 --> 01:49:39,560 we in origins are interested in this is 2685 01:49:44,620 --> 01:49:42,770 this is being broadcast around the world 2686 01:49:47,200 --> 01:49:44,630 right now at the Internet and it will be 2687 01:49:48,970 --> 01:49:47,210 recorded and online and the purpose of 2688 01:49:51,040 --> 01:49:48,980 this is to provide the information so 2689 01:49:54,160 --> 01:49:51,050 that you and the public can then act on 2690 01:49:55,270 --> 01:49:54,170 it because the leadership we can as 2691 01:49:58,030 --> 01:49:55,280 scientists can provide is really 2692 01:49:59,650 --> 01:49:58,040 providing you the information the public 2693 01:50:01,690 --> 01:49:59,660 has to take the lead in all of this and 2694 01:50:03,220 --> 01:50:01,700 we'll never do it alone and so that's 2695 01:50:04,930 --> 01:50:03,230 why we do what we do and I want to thank 2696 01:50:06,360 --> 01:50:04,940 all of you for supporting it thank you