A new poll shows that 50 percent of self-identified Tea Party members don’t believe in global warming, and less than one-fifth believe that human activities are causing the planet to heat up.

The Public Religion Research Institute poll is the latest to show deep political divides on global warming, an issue that’s also animating campaign trail clashes between GOP White House hopefuls Rick Perry, governor of Texas, and Jon Huntsman, former governor of Utah.

‘Eighty-one percent of Democrats and 7-in-10 independents believe the earth is getting warmer, compared to less than half (49%) of Republicans and only about 4-in-10 (41%) Americans who identify as members of the Tea Party,

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