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Quickly Rising Antarctica Suggests ‘Runny’ Earth
Posted by LiveScience: Charles Q. Choi on May 19th, 2014
LiveScience: Antarctica is rising unusually quickly, revealing that hot rock in the Earth's mantle hundreds of miles below the icy continent is flowing much faster than expected, researchers say.
Antarctic ice is more than 2.6 miles (4.2 kilometers) thick on some parts of the continent, a reminder that glaciers that were miles thick once covered many parts of Earth's surface. When these ice sheets shrink, as is happening now in the world's polar regions due to climate change, the underlying Earth rebounds...
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Melt from below helping shrink Antarctic glaciers
Posted by LiveScience: Charles Q. Choi on September 18th, 2013
LiveScience: The ice that Antarctica is losing as chunks break off the continent's many glaciers may be only the tip of the iceberg. Scientists now find much of the ice Antarctica loses is due to melting from the undersides of ice shelves. During the last decade, the Antarctic ice sheet has been melting an increasing amount each year, mostly in the western portion of the continent. Most of the ice Antarctica loses is replaced by snowfall, but any ice that is not replaced adds to a rise in global sea level. ...