Ancient Plants Discovered Under Greenland's Ice Sheets

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    Scientists announced on March 15, 2021, that an international effort to analyze Greenland ice cores left behind from the 1960s has revealed fossilized plants underneath mile-thick Greenland ice. These plants existed on Greenland - the world’s largest island - within the past million years. They show the ice sheet was melted that long ago, without help from human activities, and with carbon dioxide levels in the atmosphere lower than they are today. These results suggest that Greenland’s ice is vulnerable to melting. The Greenland ice sheet covers about 656,000 square miles.

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