A million years ago, Greenland was ice free

Posted by Environmental News Network: Carolyn Gramling, Science/AAAS on December 20th, 2015
Environmental News Network: As the Arctic warms, Greenland’s fringe of glaciers is thinning and melting—but the future of the Greenland ice sheet remains a giant question mark. Until recently, that was also true of the ice sheet’s past: Scientists have long debated whether it might have shrunk away to nothing during Earth’s warmest periods. Now, a new study suggests that Greenland was entirely ice free at some point in the last 1.25 million years. “We should be worried about the Greenland Ice Sheet,” says Joerg Schaefer, a......

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