Big Chunk of Antarctic Ice Collapses
Antarctica's massive Wilkins Ice Shelf has begun disintegrating under the effects of global warming, satellite images by the University of Colorado's National Snow and Ice Data Center showed on Tuesday, March 25, 2008. The collapse of a substantial section of the shelf was triggered on February 28, when an iceberg measuring 41 by 2.4 km broke off the shelf's southwestern front. That movement led to disintegration of the shelf's interior, of which 414 sq. kilometers have already disappeared.