Giant tabular icebergs surrounded by ice floe drift in Vincennes Bay in the Australian Antarctic Territory on January 11, 2008. Australia's CSIRO's atmospheric research unit has found the world is warming faster than predicted by the United Nations' top climate change body, with harmful emissions exceeding worst-case estimates.    AFP PHOTO/POOL/Torsten BLACKWOOD (Photo credit should read TORSTEN BLACKWOOD/AFP/Getty Images)