Greenland

3:33pm

Thu November 29, 2012
Science

Greenland, Antarctic Ice Is Melting Faster

Originally published on Thu November 29, 2012 3:44 pm

An iceberg that likely calved from Jakobshavn Isbrae, the fastest glacier in western Greenland.
Ian Joughin Science/AAAS

Superstorm Sandy sparked a lot of interest in rising sea levels when it swept across the Northeast last month and flooded parts of the coast. Over the next century, more water — and higher sea levels — could come from melting ice in Greenland and Antarctica. How much has been unclear.

But now scientists have developed a much clearer view of how quickly that ice has been melting over the past two decades. And that will help researchers forecast the rate of sea-level rise in the years to come.

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1:40pm

Wed July 25, 2012
Environment

Massive Ice Melt In Greenland Worries Scientists

Originally published on Wed July 25, 2012 2:53 pm

Images released Tuesday show the extent of surface melt on Greenland's ice sheet on July 8 (left) and July 12 (right). Measurements from three satellites showed that on July 8, about 40 percent of the ice sheet had undergone thawing at or near the surface. By July 12, 97 percent of the ice sheet surface had thawed.
AFP/Getty Images/NASA

A pair of NASA satellite images taken just four days apart tells a potentially worrying story of melting ice in the polar summer.

The first, snapped from orbit on July 8, shows about 40 percent of the Greenland ice sheet shaded in pink or red to illustrate probable or confirmed surface melting. The second photo, taken on July 12, shows nearly the entire land mass — 97 percent — blotched in a red hue.

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5:19am

Wed July 25, 2012
The Two-Way

'Heat Dome' Linked To Greenland's Biggest Melt In 30 Years

In these illustrations NASA produced from satellite data, the melt in Greenland on July 8 (at left) and July 12 are shown. According to NASA, "the areas classified as 'probable melt' (light pink) correspond to those sites where at least one satellite detected surface melting. The areas classified as 'melt' (dark pink) correspond to sites where two or three satellites detected surface melting."
NASA

Last week there were the pictures of an iceberg twice the size of Manhattan breaking off Greenland's Petermann Glacier.

Now there are NASA images showing that in four days earlier this month, "Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations."

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