Search results for arctic


7 Votes Vote

New deep-water methane reservoir found deep in the Arctic Ocean

Posted by External 5 hours ago General
http://www.enn.com — Research led by a University of New Hampshire professor has identified a new source of methane for gas hydrates -- ice-like substances found in sediment that trap methane within the crystal structure of frozen water -- in the Arctic Ocean. The findings, published online now in the May 2015 journal Geology, point to a previously undiscovered, stable reservoir for abiotic methane -- methane not ge Read More
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6 Votes Vote

Diverse sources of methane in shallow Arctic lakes discovered

Posted by External 1 day 5 hours ago General
http://feeds.sciencedaily.com — New research into the changing ecology of thousands of shallow lakes on the North Slope of Alaska suggests that in scenarios of increasing global temperatures, methane-generating microbes, found in thawing lake sediments, may ramp up production of the potent greenhouse gas -- which has a global warming potential 25 times greater than carbon dioxide. Read More
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10 Votes Vote

Arctic sea ice continues to shrink

Posted by External 12 days ago General
http://www.enn.com — Arctic sea ice shrank to the lowest winter extent ever recorded, according to data released today by the US-based National Snow and Ice Data Center. The record-low ice level follows earlier news that 2014 was the warmest year since record keeping began. An unusually warm February in parts of Alaska and Russia contributed to the record ice low. The winter reach of Arctic ice decreased 1.1 million Read More
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13 Votes Vote

Arctic Sea Ice Dwindling Toward Record Winter Low

Posted by External 17 days ago General
http://feedproxy.google.com — Winter is when Arctic sea ice reaches its peak extent, but this year it could set a record seasonal low. Read More
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10 Votes Vote

Ponds are disappearing in the Arctic

Posted by External 18 days ago General
http://feeds.sciencedaily.com — Ponds in the Arctic tundra are shrinking and slowly disappearing, according to a new study. More than 2,800 Arctic tundra ponds in the northern region of Alaska's Barrow Peninsula were analyzed using historical photos and satellite images taken between 1948 and 2010. Over the 62-year period, the researchers found that the number of ponds in the region had decreased by about 17 percent, while pond Read More
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11 Votes Vote

How drowsy microbes in Arctic tundra change to methane-makers as permafrost thaws

Posted by External 24 days ago General
http://feeds.sciencedaily.com — As the Arctic warms, tons of carbon locked away in Arctic tundra will be transformed into the powerful greenhouse gases carbon dioxide and methane, but scientists know little about how that transition takes place. Scientists looking at microbes in different types of Arctic soil now have a new picture of life in permafrost that reveals entirely new species and hints that subzero microbes might be Read More
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11 Votes Vote

Arctic Sea Ice 'Thinning Dramatically,' Study Finds

Posted by External 27 days ago General
http://feedproxy.google.com — Arctic sea ice — the ice that freezes and floats on Arctic waters — is thinning at a steadier and faster rate than researchers previously thought, a new study finds. Read More
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6 Votes Vote

Combined Arctic ice observations show decades of loss

Posted by External 28 days ago General
http://www.enn.com — It's no surprise that Arctic sea ice is thinning. What is new is just how long, how steadily, and how much it has declined. University of Washington researchers compiled modern and historic measurements to get a full picture of how Arctic sea ice thickness has changed. The results, published this month in The Cryosphere, show a thinning in the central Arctic Ocean of 65 percent between 1975 Read More
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