WASHINGTON (CBSDC) – Global warming may have caused a huge glacier to lose five square miles of ice in just two days.

The Jakobshavn glacier in Greenland was already the fastest moving glacier in the world.

Satellite and radar images of the glacier shows a massive chunk fell from the glacier sometime between Aug. 14 and Aug. 16.

European Space Agency scientists estimate the ice was nearly a mile thick, enough to cover the D.C. Metro area with a layer of ice almost 1,000 feet deep.

Because the island is covered with ancient glaciers, it’s considered a laboratory to measure the symptoms of global warming.

Geologists estimate the melting ice sheets of Greenland contributes to about 40 percent of rising sea levels.

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