Huge hole discovered in Arctic’s ‘last ice’

A huge hole opened in the Arctic’s oldest, thickest ice in May 2020, a new study revealed. Scientists previously thought that this area of ice was the Arctic’s most stable, but the giant rift signals that the ancient ice is vulnerable to melt. 

The polynya, or area of open water, is the first ever observed north of Ellesmere Island. But in their report on the hole in the ice, published in August in the journal Geophysical Research Letters, researchers deduced from old satellite data that similar polynyas may have opened in 1988 and 2004. 

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