Sydney Morning Herald: A thin ice bridge between two islands that has held the giant Wilkins ice shelf in place against the Antarctic peninsula for centuries appears to be near final collapse. The 40-kilometre long bridge is showing new rifts along its length and its imminent break-up could release thousands of square kilometres of ice behind it, the European Space Agency says. This would mark a new milestone for one of the most rapidly warming regions on earth. ESA scientists have been …