The flat earthers are winning.

The percentage of Americans who say there is solid evidence the earth is warming has fallen sharply over the last year. In an April 2008 survey, 71% said there was solid evidence of global warming, and almost half of Americans (47%) said it was the result of human activity. In an October survey, however, just 57% of Americans said there was solid global warming evidence, and only 36% of the public said it was the result of human activity. While the declining acceptance of global warming evidence has come from across the political spectrum -- even among Democrats the percentage seeing strong evidence of global warming has fallen from 91% in 2006 to 71% in 2009 -- the decline has been precipitous among independents in the last year. While 75% of independents said there is solid evidence the earth is warming in 2008, only a small majority (53%) continue to see such evidence now. Republicans have always been more cynical about global warming evidence but doubters have mounted quickly in recent years, after a very slight increase in support of global warming evidence in 2007. Fully 62% of Republicans said there is solid evidence the earth is warming in 2007, but currently just slightly more than a third (35%) agree.