Kamis, 27 Agustus 2020

New feedbacks speed up the demise of Arctic sea ice - Science Magazine

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Summary

Next month, Arctic sea ice extent will reach its annual minimum, which is poised to be among the lowest on record. The trend is clear: Summer ice covers half the area it did in the 1980s, and because it is thinner, its volume is down 75%. With the Arctic warming nearly three times faster than the global average, most scientists grimly acknowledge the inevitability of ice-free summers, perhaps as soon as 2035. A warming atmosphere is far from the only factor speeding up the ice loss. Strengthening currents and waves are pulverizing the ice. And a study published this month suggests deep heat in the Arctic Ocean, long held at bay, has risen and is now melting the ice from below.

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August 28, 2020 at 12:37AM
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New feedbacks speed up the demise of Arctic sea ice - Science Magazine

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