Environmental activists display a placar

Environmental activists display a placard to delegates arriving at the UN Climate Change Conference 2007 in Nusa Dua, on Bali island, 06 December 2007. Japan and Canada appear to be backing away from mandatory emissions cuts expected to be at the heart of a new global accord on fighting global warming, environmental groups said. The charge was levelled as nearly 190 nations met in the Indonesian resort of Bali, looking to take the first steps toward a new agreement to combat climate change when the current phase of the Kyoto Protocol ends in 2012. AFP PHOTO/Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP via Getty Images)