::: Antarctic Ice Shelf Collapses
A chunk of Antarctic ice about seven times the size of Manhattan suddenly collapsed, putting an even greater portion of glacial ice at risk, scientists said Tuesday.
Satellite images show the runaway disintegration of a 160-square-mile chunk in western Antarctica, which started February 28.
It was the edge of the Wilkins Ice Shelf and has been there for hundreds, maybe 1,500 years.
This is the result of global warming, said British Antarctic Survey scientist David Vaughan.
Because scientists noticed satellite images within hours, they diverted satellite cameras and even flew an airplane over the ongoing collapse for rare pictures and video.
"It's an event we don't get to see very often," said Ted Scambos, lead scientist at the National Snow and Ice Data Center in Boulder, Colorado.
"The cracks fill with water and slice off and topple. … That gets to be a runaway situation."
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