[1605] Of major 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 Feb. 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. [Western Antarctic Ice Chunk Collapses. Seth Borenstein. AP. March 25 2008]