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Uploaded by starrdreams on Jul 31, 2010
Microscopic marine algae called phytoplankton that produce half the world's oxygen and support most ocean life have declined roughly 40 per cent in the northern hemisphere since 1950.
Science & Technology
Standard YouTube License
excellent upload ~~
watersanctuary 6 months ago
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excellent upload ~~
watersanctuary 6 months ago