Sydney Morning Herald: ICE could disappear from the Arctic summer within 30 years because of global warming, a US study has found. As world governments prepare for a summit on the North and South poles that opens tomorrow, research by the University of Washington and the US Government’s National Oceanic and Atmospheric Administration has delivered dire forecasts for the Arctic. Previous studies had warned that ice might vanish by the turn of the century. But James Overland, co-author of the …