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NEWS | September 22, 2015The hidden meltdown of Greenland

From NASA Science News

NASA-supported researchers have found that ice covering Greenland is melting faster than thought.

More than 90 percent of our planet’s freshwater ice is bound in the massive ice sheets and glaciers of the Antarctic and Greenland. As temperatures around the world slowly climb, melt waters from these vast stores of ice add to rising sea levels. All by itself, Greenland could bump sea levels by 7 meters (23 feet) if its ice melted completely.

And … it’s melting.
In August 2014, Eric Rignot, a glaciologist working at the University of California, Irvine and NASA’s Jet Propulsion Laboratory, led a team in mapping ice cliffs at the front edges of three outlet glaciers in Greenland. The researchers found cavities that undercut the base of these leading edges that can destabilize the ice front and enhance iceberg calving, the…