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Hot News from the Antarctic Underground

7 Nov 2017, 20:11 UTC
Hot News from the Antarctic Underground Marcos Porcires / Norwegian Polar Institute

A new NASA study adds evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that creates lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing threat to the West Antarctic ice sheet, it may help explain why the ice sheet collapsed rapidly in an earlier era of rapid climate change, and why it is so unstable today.

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