PublicationsDecember 1, 2011

Modest Rise in Number Saying There Is ‘Solid Evidence’ of Global Warming

The percentage of Americans who say there is solid evidence of global warming has increased modestly over the past two years. Currently, 63% say there is solid evidence that the earth’s average temperature has been getting warmer over the past few decades. In October 2009, 57% expressed this view. The number saying global warming […]