1 00:00:11,209 --> 00:00:07,730 there's been predictions that summer sea 2 00:00:19,010 --> 00:00:11,219 ice cover will be gone by 2040 which is 3 00:00:21,950 --> 00:00:19,020 just around the corner these huge masses 4 00:00:24,439 --> 00:00:21,960 of ice can change far more rapidly than 5 00:00:26,810 --> 00:00:24,449 we thought they don't change on 6 00:00:29,000 --> 00:00:26,820 timescales of centuries we've seen 7 00:00:36,910 --> 00:00:29,010 changes within a decade which were quite 8 00:00:39,110 --> 00:00:36,920 significant despite its name the 9 00:00:42,170 --> 00:00:39,120 International polar year research 10 00:00:45,020 --> 00:00:42,180 project runs two full years to allow 11 00:00:48,080 --> 00:00:45,030 thousands of scientists from over 60 12 00:00:51,049 --> 00:00:48,090 nations to study to complete cycles of 13 00:00:54,170 --> 00:00:51,059 Earth's North and South Poles they will 14 00:00:58,569 --> 00:00:54,180 study all aspects of the poles land 15 00:01:03,560 --> 00:00:58,579 regions ice sheets glaciers sea ice 16 00:01:07,670 --> 00:01:03,570 oceans and the atmosphere we live in 17 00:01:13,609 --> 00:01:07,680 area of satellite observations we have 18 00:01:15,469 --> 00:01:13,619 more quantitative information we go 19 00:01:19,249 --> 00:01:15,479 beyond telling you the green ice sheet 20 00:01:21,370 --> 00:01:19,259 is melting and losing mass we can 21 00:01:23,390 --> 00:01:21,380 actually put a number to that and 22 00:01:28,980 --> 00:01:23,400 convert that number into something 23 00:01:33,160 --> 00:01:31,059 we know that from studying the Earth's 24 00:01:35,739 --> 00:01:33,170 poles that if you take an ice core it 25 00:01:37,809 --> 00:01:35,749 can tell us about the climate history of 26 00:01:39,819 --> 00:01:37,819 the earth they look at the trapped gases 27 00:01:41,590 --> 00:01:39,829 in the ice core and then they can tell 28 00:01:42,880 --> 00:01:41,600 for example how much carbon dioxide was 29 00:01:47,039 --> 00:01:42,890 in the atmosphere how much methane was 30 00:01:50,260 --> 00:01:47,049 the atmosphere other greenhouse gases I 31 00:01:52,270 --> 00:01:50,270 think to the general public it's 32 00:01:53,980 --> 00:01:52,280 difficult to relate to a warming of air 33 00:01:55,839 --> 00:01:53,990 temperature if the air temperature warms 34 00:01:58,809 --> 00:01:55,849 up one or two degrees I don't think it 35 00:02:02,850 --> 00:01:58,819 speaks very much if hear stories about 36 00:02:07,059 --> 00:02:02,860 the ice caps melting the sea is being 37 00:02:09,100 --> 00:02:07,069 gone by 2040 or even polar bears dying 38 00:02:11,430 --> 00:02:09,110 because of it there's no sea ice for 39 00:02:14,350 --> 00:02:11,440 them to survive they can relate to that 40 00:02:17,680 --> 00:02:14,360 the consequences both natural and 41 00:02:20,920 --> 00:02:17,690 man-made are seen at the poles sooner 42 00:02:23,160 --> 00:02:20,930 than elsewhere this international 43 00:02:25,809 --> 00:02:23,170 warrior the main goal is to establish 44 00:02:30,580 --> 00:02:25,819 the state of health of the polar regions 45 00:02:33,860 --> 00:02:30,590 and other reference for future studies 46 00:02:38,180 --> 00:02:33,870 NASA scientists are using polls to learn 47 00:02:39,620 --> 00:02:38,190 about our world and others the ice 48 00:02:42,230 --> 00:02:39,630 sheets of Earth and the polar regions 49 00:02:44,750 --> 00:02:42,240 are true frontiers and their frontiers 50 00:02:47,960 --> 00:02:44,760 that link earth to the planets beyond 51 00:02:52,420 --> 00:02:47,970 Earth in 2008 during the Nike why NASA 52 00:02:56,000 --> 00:02:54,620 it will land in the northern polar 53 00:02:58,040 --> 00:02:56,010 region of Mars will be in that 54 00:02:59,900 --> 00:02:58,050 environment that we can dig down into 55 00:03:02,090 --> 00:02:59,910 the soil and sample the ISIS in the soil 56 00:03:06,260 --> 00:03:02,100 that's their and analyze it in our 57 00:03:07,880 --> 00:03:06,270 onboard instruments in 2008 during the 58 00:03:09,590 --> 00:03:07,890 IP why NASA will launch the lunar 59 00:03:12,110 --> 00:03:09,600 reconnaissance orbiter and this vehicle 60 00:03:14,450 --> 00:03:12,120 will explore in earnest using remote 61 00:03:16,760 --> 00:03:14,460 sensing the poles of the moon relate 62 00:03:19,400 --> 00:03:16,770 them back to our earth polls even to the 63 00:03:22,310 --> 00:03:19,410 poles of Mars and open that frontier we 64 00:03:24,680 --> 00:03:22,320 hope for human presence and eventually 65 00:03:27,050 --> 00:03:24,690 sustain human presence so we can 66 00:03:30,380 --> 00:03:27,060 actually learn about ourselves by 67 00:03:34,370 --> 00:03:30,390 exploring the moon Mars Saturn Saturn's 68 00:03:37,850 --> 00:03:34,380 icy moons mercury even Venus and apply 69 00:03:39,620 --> 00:03:37,860 it to home all through this scientific