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Published online 9 December 2002 | Nature | doi:10.1038/news021209-2

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Record melt in Arctic and Greenland

Ice sheets shrank by 1 million square kilometres this summer.

Ice covering the Arctic Ocean and Greenland shrank by record amounts this summer, new research shows. The rise in seasonal melting has led some experts to estimate that 20% of Arctic sea ice could be lost by 2050.

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