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Greenland is melting -- The past might tell what the future holds
2015-02-20 13:00:00| LifeSciencesWorld
[NEWS] A team of scientists lead by Danish geologist Nicolaj Krog Larsen have managed to quantify how the Greenland Ice Sheet reacted to a warm period 8,000-5,000 years ago. Back then temperatures were 2-4 degrees C warmer than present. Their results have just been published in the scientific journal Geology, and are important as we are rapidly closing in on similar temperatures. While the world is preparing for a rising global sea-level, a group of scientists led by Dr. Ni…
Surprise Lake Sheds Light on Underbelly Greenland Ice
2015-01-23 00:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Climate Central: On a clear day, anyone flying over Greenland on the route between North America and Europe can look down and see the bright blue patches of melted water atop the flat, blindingly white expanse of the ice sheet that covers the island, the second largest chunk of ice on Earth. Scientists have long known this meltwater flows in streams along the ice sheet's surface before disappearing down chutes that take it tumbling to the bottom of the ice sheet, where the ice scrapes against bedrock. It was...
Rapid Draining of Greenland Lakes Signals Massive Melting, Researchers Say
2015-01-22 20:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Yale Environment 360: Researchers have discovered craters left behind when two lakes under the Greenland ice sheet rapidly drained recently -- an indication that a massive amount of meltwater has started overflowing the ice sheet's natural plumbing and is causing "blowouts" that drain lakes away, they say. One of the two lakes once held billions of gallons of water and emptied to form a mile-wide crater in just a few weeks, researchers report in the journal The Cryosphere. The other lake, described this week in the journal...
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New Lakes Discovered Under Greenland Ice Hint at Warming
2015-01-22 14:47:00| Climate Ark Climate Change & Global Warming Newsfeed
Live Science: The discovery of two large lakes hidden beneath Greenland's ice suggests that climate change now cuts all the way to the bottom of the ice sheet, according to two new studies. The lakes, on opposite coasts, were only spotted because meltwater from Greenland's surface triggered gushing floods in the fall of 2011. Billions of gallons of water had flushed some 30 miles (50 kilometers) to the sea, leaving behind sunken craters in the surface of the ice above the lakes. Researchers found the fractured...
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Melting Greenland ice sheet is biggest contributor to sea level rise
2015-01-16 14:02:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: As the largest single chunk of melting snow and ice in the world, the massive ice sheet that covers about 80 percent of Greenland is recognized as the biggest potential contributor to rising sea levels due to glacial meltwater. Until now, however, scientists attention has mostly focused on the ice sheets aquamarine lakes bodies of meltwater that tend to abruptly drain and on monster chunks of ice that slide into the ocean to become icebergs. But a new UCLA-led study reveals a vast network...
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