Research aimed at disputing the scientific consensus on global warming is part of a huge public misinformation campaign funded by some of the largest carbon polluters in the world, former US vice president Al Gore said Tuesday. "There has been an organized campaign, financed to the tune of about US$10 million a year from some of the largest carbon polluters, to create the impression that there is disagreement in the scientific community," Gore said at a forum in Singapore. "In actuality, there is very little disagreement." Gore likened the campaign to that of the millions of dollars spent by US tobacco companies years ago on creating the appearance of uncertainty and debate within the scientific community on the harmful effects of smoking cigarettes. "This is one of the strongest of scientific consensus views in the history of science," Gore said. "We live in a world where what used to be called propaganda now has a major role to play in shaping public opinion."