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Sea Levels May Rise More Rapidly Due To Greenland Ice Melt - Slashdot

An anonymous reader quotes a report from The Guardian: Rising sea levels could become overwhelming sooner than previously believed, according to the authors of the most comprehensive study yet of the accelerating ice melt in Greenland. Run-off from this vast northern ice sheet -- currently the biggest single source of meltwater adding to the volume of the world's oceans -- is 50% higher than pre-industrial levels and increasing exponentially as a result of manmade global warming, says the paper, published in Nature on Wednesday. Almost all of the increase has occurred in the past two decades -- a jolt upwards after several centuries of relative stability. This suggests the ice sheet becomes more sensitive as temperatures go up.

The researchers used ice core data from three locations to build the first multi-century record of temperature, surface melt and run-off in Greenland. Going back 339 years, they found the first sign of meltwater increase began along with the...(continued)

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