World has 10-year window to act on climate

leading U.S. climate researcher said on Wednesday the world has a 10-year window of opportunity to take decisive action on global warming and avert a weather catastrophe.

NASA scientist James Hansen, widely considered the doyen of American climate researchers, said governments must adopt an alternative scenario to keep carbon dioxide emission growth in check and limit the increase in global temperatures to 1 degree Celsius (1.8 degrees Fahrenheit).