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Greenland Glacier Lost Mountain Range Worth Ice Last Month

2014-06-10 16:58:00| Climate Ark Climate Change & Global Warming Newsfeed

New York Magazine: For those who sleep soundly at night by telling themselves they'll be long gone by the time climate change matters: Environmentalist Bill McKibben points us toward glacier-watchers reporting that a gigantic one in Greenland has lost up to ten cubic kilometers in less than 30 days. Greenland, that's far away, right? And what's a cubic kilometer anyway? Writes Robert Scribbler: Think of something the size of a mountain. Now multiply that by ten and you end up with a veritable mountain range....

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A Dusty Greenland Is Speeding Up Glacial Melt

2014-06-10 08:30:00| Climate Ark Climate Change & Global Warming Newsfeed

ThinkProgress: Greenland provides one of the best real-time visuals of climate change - cleaving glaciers the size of buildings cascading into the ocean as one long, slow river of ice returning to the sea. A new study shows that a layer of dust covering much of Greenland`s ice sheet could be speeding up this process. A paper published in the journal Nature Geoscience suggests that dust particles embedded in Greenland`s massive ice sheet are gathering more heat than the otherwise white, reflective surface would...

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Greenland Is Getting Darker

2014-06-08 12:18:00| Climate Ark Climate Change & Global Warming Newsfeed

Science: Greenlands white snow is getting darker. Scientists have generally attributed that darkening to larger, slightly less white snow grains caused by warmer temperatures. But researchers have found a new source of darkening taking hold: impurities in the snow. It can increase the speed of melting, says Marie Dumont, a remote sensing scientist at Météo France in Grenoble, who publishes today with her colleagues in Nature Geoscience. Scientists have known for years that Greenlands snow is getting...

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Greenland Could Become Greater Contributor To Sea Level Rise Than Previously Expected

2014-05-19 13:18:00| Climate Ark Climate Change & Global Warming Newsfeed

RedOrbit: Greenland`s icy reaches are far more vulnerable to warm ocean waters from climate change than had been thought, according to new research by UC Irvine and NASA glaciologists. The work, published May 18 in Nature Geoscience, shows previously uncharted deep valleys stretching for dozens of miles under the Greenland Ice Sheet. The bedrock canyons sit well below sea level, meaning that as subtropical Atlantic waters hit the fronts of hundreds of glaciers, those edges will erode much further than had...

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Greenland Glaciers More Susceptible to Melt Than Thought

2014-05-18 19:30:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Central: Greenland's glaciers are more vulnerable to melting by warm ocean waters than previously thought, a new study of the topography of the bedrock under the ice finds. This clearer picture of the underpinnings of the miles-thick ice sheet, along with other recent studies that suggest parts of Earth's polar regions are not as stable as once thought, could mean that current projections of future sea level rise are too low. On April 8, 2011, NASA's Operation IceBridge flew a mission to coastal areas...

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