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Antarctica, Greenland ice definitely melting into sea, and speeding up, experts warn - World News
Combining satellite data from dozens of earlier studies, the study "shows that the Antarctic and Greenland ice sheets have contributed just over 11 millimeters (0.4 inches) to global sea levels since 1992," he added. Two-thirds was from Greenland, a third from Antarctica.
Much of the discrepancy was due to data showing that Antarctica's vast eastern ice sheet was adding, not losing ice.
Eastern Antarctica has indeed added ice, but continent-wide the last decade shows a "50 percent increase in ice loss rate," said study co-author Erik Ivins, a satellite data expert with NASA's Jet Propulsion Lab.
Most of that loss is in western Antarctica at places like Pine Island Glacier, where an iceberg the size of New York City is set to calve off. The iceberg itself won't raise sea levels since that ice is already atop water, but thinning glaciers mean that ice on the mainland can make its way downhill to the sea faster.
In the U.S., the Obama administration is overhauling its satellite program after an outside review team found it "dysfunctional."
[ame=http://www.youtube.com/watch?v=Tv9Kwg4PtR8]NASA | OIB: High and Low over the Rift - YouTube[/ame]
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Thank God we have Obama as president. Remember Republicans - NO spending on infrastructure. Fewer teachers. "Alternate" science. Republicans would never replace aging satellites. They probably don't believe they exist.
Combining satellite data from dozens of earlier studies, the study "shows that the Antarctic and Greenland ice sheets have contributed just over 11 millimeters (0.4 inches) to global sea levels since 1992," he added. Two-thirds was from Greenland, a third from Antarctica.
Much of the discrepancy was due to data showing that Antarctica's vast eastern ice sheet was adding, not losing ice.
Eastern Antarctica has indeed added ice, but continent-wide the last decade shows a "50 percent increase in ice loss rate," said study co-author Erik Ivins, a satellite data expert with NASA's Jet Propulsion Lab.
Most of that loss is in western Antarctica at places like Pine Island Glacier, where an iceberg the size of New York City is set to calve off. The iceberg itself won't raise sea levels since that ice is already atop water, but thinning glaciers mean that ice on the mainland can make its way downhill to the sea faster.
In the U.S., the Obama administration is overhauling its satellite program after an outside review team found it "dysfunctional."
[ame=http://www.youtube.com/watch?v=Tv9Kwg4PtR8]NASA | OIB: High and Low over the Rift - YouTube[/ame]
------------------------------------
Thank God we have Obama as president. Remember Republicans - NO spending on infrastructure. Fewer teachers. "Alternate" science. Republicans would never replace aging satellites. They probably don't believe they exist.
