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Tag: permafrost
"Stable" Antarctic Permafrost Melting Faster than Expected, Researchers Say
2013-07-24 14:33:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World News: The stable ice on Antarctic- the coastal permafrost- is melting faster than expected, a new study reported. Researchers said that the melting rate of the coastal Antarctic permafrost is now similar to the melt rate of permafrost at Arctic. The permafrost in Antarctic was considered to be in equilibrium, meaning that it did melt and refreeze, but its mass remained the same. The regions experienced a cooling trend in the past decade and now have stable temperatures. However, researchers have...
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faster
stable
researchers
Is Arctic permafrost the 'sleeping giant' of climate change?
2013-06-26 11:38:00| Climate Ark Climate Change & Global Warming Newsfeed
Inquirer: Flying low and slow above the pristine terrain of Alaska's North Slope research scientist Charles Miller of NASA's Jet Propulsion Laboratory surveys the white expanse of tundra and permafrost below. On the horizon, a long, dark line appears. His plane draws nearer, and the mysterious object reveals itself to be a massive herd of migrating caribou, stretching for miles. It's a sight Miller won't soon forget. "Seeing those caribou marching single-file across the tundra puts what we're doing here...
Tags: change
giant
climate
sleeping
Remote-sensing study quantifies permafrost degradation in Arctic Alaskan wetlands
2013-04-18 22:48:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: A team of geoscientists from Southwest Research Institute (SwRI) using newly available remote-sensing technology has achieved unprecedented detail in quantifying subtle, long-period changes in the water levels of shallow lakes and ponds in hard-to-reach Arctic wetlands. Analysis comparing time-lapsed, high-resolution satellite imagery of the Ahnewetut Wetlands in Kobuk Valley National Park, Alaska, revealed an accelerated loss of surface water in shallow thaw lakes and ponds over a recent 27-year...
Tags: study
arctic
degradation
wetlands
Rise in 1.5 degrees Celsius likely to spark massive greenhouse gas release from permafrost
2013-02-25 21:26:00| Climate Ark Climate Change & Global Warming Newsfeed
Mongabay: While nations around the world have committed to keeping temperatures from rising 2 degrees Celsius (3.6 degrees Fahrenheit) above the pre-industrial era, new research published in Science suggests that the global climate could hit a tipping point at just 1.5 degrees Celsius (2.5 degrees Fahrenheit). Studying cave stalactites and stalagmites in Siberia, scientists found that at about 1.5 degrees Celsius the Siberian permafrost melts, potentially releasing a greenhouse gas bomb of 1,000 giga-tonnes,...
Tags: release
gas
rise
degrees
Siberia Could Experience Widespread Permafrost Thaw Due To Global Warming
2013-02-23 19:18:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: More evidence is pointing to the nightmare scenario that global warming is taking a toll on our planet. Oxford University scientists say that a global temperature rise of 2.7 degrees Fahrenheit could thaw the ground over a large area of Siberia, threatening the release of carbon from soil. If the thawing of Siberia`s permafrost occurs, it could see that over 1,000 gigatons of the greenhouse gases carbon dioxide and methane are dished out into the atmosphere, adding an even larger global warming...
Tags: due
experience
global
warming
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