MELTING GLACIERS SOON NONE WILL BE LEFT CAUSING DROUGHT AND FLOODS NASA NOAA

William Keefer 2014-07-18

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MELTING GLACIERS SOON NONE WILL BE LEFT CAUSING DROUGHT AND FLOODS NASA NOAA

The vast glaciers of western Antarctica are rapidly melting and losing ice to the sea and almost certainly have "passed the point of no return," according to new work by two separate teams of scientists.
The likely result: a rise in global sea levels of 4 feet or more in the coming centuries, says research made public Monday by scientists at the University of Washington, the University of California-Irvine and NASA's Jet Propulsion Laboratory.
"It really is an amazingly distressing situation," says Pennsylvania State University glaciologist Sridhar Anandakrishnan, who was not affiliated with either study. "This is a huge part of West Antarctica, and it seems to have been kicked over the edge."
The researchers say the fate of the glaciers is almost certainly beyond hope.
One study shows that a river of ice called Thwaites Glacier is probably in the early stages of collapse. Total collapse is almost inevitable, the study shows.
A second study shows that a half-dozen glaciers are pouring ice into the sea at an ever-greater pace. That will trigger 4 feet of sea-level rise, says study author Eric Rignot, a glaciologist at the University of California-Irvine, and NASA's Jet Propulsion Laboratory.
"The retreat of ice in that area is unstoppable," Rignot said at a briefing Monday, adding that the glaciers have "passed the point of no return."

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