WEST ANTARCTICA — A hole the size of two-thirds of Manhattan and 1,000 feet deep has been found in a glacier in Antarctica.
Researchers believe 14 billion tons of ice under the glacier have melted over the past three years.
Scientists were surprised by the size of the hole under the glacier and how fast the ice is melting.
Thwaites Glacier is about the size of Florida and is currently responsible for about 4 percent of global sea level rise, according to NASA. "It holds enough ice to raise the world ocean a little over 2 feet and backstops neighboring glaciers that would raise seas levels an additional 8 feet if all ice were lost, NASA said in a press release.
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