Arctic ice cover for winter maximum and summer minimum for 1980 and 2007. While there is clear difference between the sea-ice extent at the end of the winter between 1980 and 2007, the summer minima show startling differences. In September 2007 the area covered by perennial sea ice shrunk to the smallest recorded since satellite measurements began 30 years ago.
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A new model looking at future melt of the Greenland Ice Sheet generated some buzz…
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