Greenland

Can liquid water persist within an ice sheet?

Scientists have discovered a large aquifer, the size of Ireland, near the surface of the Greenland Ice Sheet. “This was a big surprise,” said Jason Box, a researcher for the Geological Survey of...

What is under Greenland’s ice?

We have been watching surface melting of the Greenland Ice Sheet (see Greenland Ice Sheet Today ) as one sign of climate change....

Are Greenland’s galloping glaciers slowing down?

One of the three major ice streams studied, the outlet of the Jakobshavn-Isbræ glacier produces about 10...

A greener Arctic

As higher temperatures create more temperate environments across parts of the Arctic, vegetation is...

Greenland Ice Sheet Today

A large melt pond on the Greenland Ice Sheet, photographed in 2004. Although melt ponds are normal...

What caused last summer’s Greenland surface melt?

These satellite-derived maps show the extent of surface melt over Greenland’s ice sheet during the summer of 2012...

Greenland’s glaciers and the Arctic climate

These before-and-after photographs show Petermann Glacier in July 2009, before the calving event, and again in...

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