YahooNews: The number of Americans who believe global warming isn’t happening has risen to 23 percent, up 7 percentage points since April 2013.
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.
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