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The '''controversy over the science of [[global warming]]''' is mainly over the extent of [[human]] contribution to warming, as well as a dispute over predictions of near-future warming and its effect on human beings and the environment.

The '''controversy over the science of [[global warming]]''' is mainly over the extent of [[human]] contribution to warming, as well as a dispute over predictions of near-future warming and its effect on human beings and the environment.

Among registered U.S. voters, opinion is split down the middle, with 75% of Democrats believing that "the science is settled" in favor of the view of the [[IPCC]], and 73% of Republicans believing that there is no scientific proof or that global warming is a sign of the end times and should not be tampered with.  Both main party candidates for president in the 2008 election, [[John McCain]] and [[Barack Obama]], have stated publicly that the issue is real and urgent.

Among registered U.S. voters, opinion is split down the middle, with 75% of Democrats believing that "the science is settled" in favor of the view of the [[IPCC]], and 73% of Republicans believing that there is no scientific proof.  Both main party candidates for president in the 2008 election, [[John McCain]] and [[Barack Obama]], have stated publicly that the issue is real and urgent.

The Stern Review<ref>[http://www.hm-treasury.gov.uk/newsroom_and_speeches/press/2006/press_stern_06.cfm  

The Stern Review<ref>[http://www.hm-treasury.gov.uk/newsroom_and_speeches/press/2006/press_stern_06.cfm