Huge Antarctic ice chunk collapses

Scientists flocked to take pictures and shoot video after a massive
chunk of the Wilkins ice shelf collapsed in Antarctica.

WASHINGTON (AP) -- 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. full story