Antarctic ice melt may be reversible due to rising land beneath

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Antarctic ice melt may be reversible due to rising land beneath


Satellite view of icebergs breaking away from a glacier in West Antarctica into the Amundsen Sea

NASA Earth Observatory/Lauren Dauphin/Landsat 8

The melting of the West Antarctic ice sheet isn’t necessarily permanent, as bedrock cores show that some of its ice grew back after a more severe thaw thousands of years ago. The evidence suggests that Earth’s crust rebounding from under the diminishing ice, like a memory foam mattress, could slow glacial melt and sea level rise.

The ice sheet, which holds enough ice to raise oceans more than 3 metres, sits mostly below sea level. …



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