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examines oceans and how they affect earth’s climate. Videos focus on six topics: the water cycle, carbon cycle, sea level changes, ocean salinity, remote sensing, and phytoplankton (the tiny marine plants responsible for half of the photosynthesis that occurs on earth). (National Aeronautics and Space Administration)
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One tiny marine plant makes life on Earth possible: phytoplankton. These microscopic photosynthetic drifters form the basis of the marine food web, they regulate carbon in the atmosphere, and are responsible for half of the photosynthesis that takes place on this planet. |
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Movie: Salt of the Earth |
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