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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2 huge asteroid strikes 36 million years ago didn't change Earth's climate over the long haul, study findsTwo enormous asteroids that struck Earth about 36 million years ago did not cause any long-lasting ... that Earth's climate did not swerve in the 150,000 years following the asteroid strikes ...
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