How much has the thickness of the ice caps changed because of global warming?



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    Between 2004 and 2008 alone, the thickness of the Arctic ice cap shrunk by 2.2 feet. In 2008, the ice covered more area than in 2007, but the thickness had nonetheless diminished. In 1991, the Arctic ice cap was measured to be just over 10 feet deep in the summer months. The thickest part of that has melted to the point where it is only three feet deep. In some of the most devastated parts of the ice cap, the thickness is measured at a paltry 3 inches.

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