More Americans Say There Is Solid Evidence of Global Warming

Oct 15, 2012

The percentage of Americans saying there is solid evidence of global warming has steadily increased over the past few years. Currently, 67% say there is solid evidence that the earth’s average temperature has been getting warmer over the past few decades, up four points since last year and 10 points since 2009.

Similarly, an increasing proportion say that the rise in the earth’s temperature has mostly been caused by human activity. Currently, 42% say the warming is mostly caused by human activity, such as burning fossil fuels, while 19% say it is mostly caused by natural patterns in the earth’s environment. Last year, 38% mostly attributed global warming to human activity and in 2010 34% did so.

The national survey by the Pew Research Center for the People & the Press, conducted Oct. 4-7 among 1,511 adults finds increasing numbers of Democrats, Republicans and independents saying there is solid evidence of warming, although there continues to be a substantial partisan divide on this issue. Fully 85% of Democrats say there is solid evidence that the average temperature has been getting warmer, up from 77% last year and similar to levels in 2007 and 2008.

Read the full report, More Americans Say There Is Solid Evidence of Global Warming, on the Pew Research Center for the People & the Press website.

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