Agence France Presse: 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. The collapse of a substantial section of the shelf was triggered February 28 when an iceberg measuring 41 by 2.4 kilometers (25.5 by 1.5 miles) broke off its southwestern front. That movement led to disintegration of the shelf’s interior, of which 414 square kilometers (160 square miles) …