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The number of Americans who believe global warming isn't happening has risen to 23 percent, up 7 percentage points since April 2013.
The latest survey, taken in November 2013, finds that the majority of Americans — 63 percent — do believe in climate change, and 53 percent are "somewhat" or "very" worried about the consequences.
The proportion of people who do believe in climate change has been steady since April 2013, but the proportion of those who say they "don't know" whether climate change is happening dropped 6 percentage points between April and November 2013, suggesting that many "don't knows" moved into the "not happening" category.
"People who prior said don't know are increasingly saying they don't believe it," said Anthony Leiserowitz, the director of the Yale Project on Climate Change Communication, which released the new results today (Jan. 16). [10 Climate Change Myths, Busted]
Climate opinion Leiserowitz and his colleagues surveyed a nationally representative sample of 830 Americans in late November and into early December 2013. The margin of error is plus or minus 3 percentage points.
This is a condensed version of a report from LiveScience. Read the full story.