Reuters: Satellite images show that a large hunk of Antarctica’s Wilkins Ice Shelf has started to collapse in a fast-warming region of the continent, scientists said on Tuesday. The area of collapse measured about 160 square miles (415 square km) of the Wilkins Ice Shelf, according to satellite imagery from the University of Colorado’s National Snow and Ice Data Centre. The Wilkins Ice Shelf is a broad sheet of permanent floating ice that spans about 5,000 square miles (13,000 square …