1
00:00:00,000 --> 00:00:01,271
the ocean

2
00:00:01,931 --> 00:00:05,380
ninety-nine percent of Earth's living
space

3
00:00:05,380 --> 00:00:14,381
the atmosphere: nitrogen and oxygen
carbon dioxide and more at the top of

4
00:00:14,381 --> 00:00:15,311
the ocean

5
00:00:15,311 --> 00:00:22,151
trillions of microscopic algae - 
phytoplankton, different shapes, different

6
00:00:22,151 --> 00:00:30,640
sizes, different roles - in a web of life.
Like land plants, phytoplankton need

7
00:00:30,640 --> 00:00:34,061
carbon dioxide to build cellular
material.

8
00:00:34,061 --> 00:00:40,631
They also give off oxygen - so much oxygen
that one of every two breaths you take

9
00:00:40,631 --> 00:00:46,991
uses oxygen produced by phytoplankton
but to understand how the ocean and

10
00:00:46,991 --> 00:00:51,401
atmosphere interact and what that means
in terms of global climate change

11
00:00:52,091 --> 00:00:55,091
you need to look down from space