13 December, 2016

This stunning Antarctic lake is buried in ice. And that could be bad news

Atop the ice sheet covering the Arctic island of Greenland, you now see dramatic melting in the summer. It forms lakes, rivers and even dangerous "moulins" in the ice where rivers suddenly plunge into the thick ice sheet, carrying water deep below.

East Antarctica is supposed to be different. It is extremely remote and cold. It doesn't see such warm temperatures in the summer - yet - and so its ice tends to remain more pristine.

"Many people refer to East Antarctica as being too cold for significant melt," says Jan Lenaerts, a glaciologist with the Utrecht University in the Netherlands. "I mean there's marginal melt in summer, but there's not a lot."

That's the common wisdom, at least, but it is challenged in a new study in Nature Climate Change, by Lenaerts and his colleagues from universities in the Netherlands, Belgium and Germany. They do so based on research they conducted atop the very large Roi Baudouin ice shelf in East Antarctica, which floats atop the ocean, and where they found a very Greenland-like situation in early 2016.

Read Chris Mooney’s story in The Sydney Morning Herald - “This stunning Antarctic lake is buried in ice. And that could be bad news.”

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