A recent poll suggests that high-profile controversies regarding climate science are weakening public confidence in the validity of global warming, And that could endanger congressional efforts to pass climate legislation. In 2008, 71 percent of respondents said they thought global warming was happening, while 10 percent thought it wasn’t. This year, only 57 percent thought global warming was a reality, and the number of doubters increased to 20 percent, according to a poll conducted by the Yale...
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