Suzanne Goldenberg
The Guardian
October 23, 2009

[efoods]The number of Americans who believe in global warming has plummeted, falling 20% in two years, a survey said today.

Only 57% of Americans believe there is solid scientific evidence that the Earth’s atmosphere is warming, said the poll of 1,500 people by the Pew Research Centre for the People & the Press.

That is a fall of 77% from 2007. The number of people who believe that human activity is causing global warming also fell to just 36%.

The public uncertainty about the evidence behind global warming comes as the Senate prepares to begin debate next week on climate change legislation. Yesterday, 18 scientific organisations wrote Congress to reaffirm the consensus behind global warming.

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