NASA Study: More Greenland Ice Lost Than Previously Estimated

A new, comprehensive analysis of satellite data finds that majority of glaciers on the landmass have retreated significantly.

4 min readJakobshavn Isbrae, a glacier on Greenland’s western coast, is shown in imagery taken on Sept. 5, 1985, by the Landsat 5 satellite. Jakobshavn receded from 1985 to 2022, losing about 97 billion tons of ice, a recent study of the Greenland Ice Sheet’s glacial retreat found.A Landsat 8 image from Sept. 4, 2022, shows Jakobshavn Isbrae breaking at its edge.

“When the ice at the end of a glacier calves and retreats, it’s like pulling the plug out of the fjord, which lets ice drain into the ocean faster,” said Chad Greene, a glacier scientist at JPL and the study’s lead author.For decades researchers have studied the Greenland Ice Sheet’s direct contributions to global sea level rise through ice flow and melting.

The researchers also found that Greenland’s ice extent remained relatively steady from 1985 to 2000, then started a marked recession that continues to this day.

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