Ocean Overview (Video via National Geographic)
 

Ocean Overview (Video)

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Via National Geographic:

Ocean Overview 7.35m
The ocean is the source of all life. With every drop you drink and every breath you take, you are connected to the ocean no matter where on Earth you live. Oceans generate 70% of the oxygen in the air, and absorb much of its carbon dioxide. They drive the climate, the weather and the chemistry of the planet...