Greenland's Glaciers Melting Faster...

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Post by Rockhopper on Tue Aug 19, 2014 8:56 pm

Greenland's Glaciers Melting Faster... 14189218861_1d94a2f08b_o

Than previously thought! The implications are somewhat dire for people living along the sea shores.

Major UCI-NASA work reveals long, deep valleys connecting ice cap to the ocean

Irvine, Calif., May 19, 2014 — Greenland’s icy reaches are far more vulnerable to warm ocean waters from climate change than had been thought, according to new research by UC Irvine and NASA glaciologists. The work, published today in Nature Geoscience, shows previously uncharted deep valleys stretching for dozens of miles under the Greenland Ice Sheet.

The bedrock canyons sit well below sea level, meaning that as subtropical Atlantic waters hit the fronts of hundreds of glaciers, those edges will erode much further than had been assumed and release far greater amounts of water.

Ice melt from the subcontinent has already accelerated as warmer marine currents have migrated north, but older models predicted that once higher ground was reached in a few years, the ocean-induced melting would halt. Greenland’s frozen mass would stop shrinking, and its effect on higher sea waters would be curtailed.

“That turns out to be incorrect. The glaciers of Greenland are likely to retreat faster and farther inland than anticipated – and for much longer – according to this very different topography we’ve discovered beneath the ice,” said lead author Mathieu Morlighem, a UC Irvine associate project scientist. “This has major implications, because the glacier melt will contribute much more to rising seas around the globe.”

From Here.


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Post by Lenzabi on Wed Aug 20, 2014 3:09 am

Risisng seas as well as slow downs of the major ocean currents which pump warm water to cold zones and vice versa. Basically like me getting too much blood thinner.

Slowing of the jetstreams will also impact ocean life as well as mess further with the weather.,

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