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Chip Chick on MSNEarth Had Green Oceans Billions Of Years Ago, And Now They Could Be Going Green AgainBillions of years ago, our planet did not have the deep blue oceans we admire today. Instead, they were actually […] ...
Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising temperatures are once again causing the world’s oceans to turn green.
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