National Journal has released a new ‘Congressional Insiders Poll,’ which surveyed 113 members of Congress – 10 Senate Democrats, 48 House Democrats, 10 Senate Republicans, and 45 House Republicans – about their positions on global warming. The results were startling. Only 13 percent of congressional Republicans say they believe that human activity is causing global warming, compared to 95 percent of congressional Democrats. Moreover, the number of Republicans who believe in human-induced global warming has actually dropped since April 2006, when the number was 23 percent. Question: Do you think it’s been proven beyond a reasonable doubt that the Earth is warming because of man-made problems? The last Congressional Insiders Poll on global warming was in April 2006. Subsequently: – In June 2006, the National Academy of Sciences, an independent organization created by Congress to provide scientific guidance, unequivocally concluded that natural causes cannot explain the unprecedented warmth over the last 400 years. Rather, ‘human activities are responsible for much of the recent warming,’ the report states. – In February 2007, the Intergovernmental Panel on Climate Change ‘concluded for the first time that global warming is ‘unequivocal’ […]