Mike Huckabee (R-Ark.)Photo: Gage SkidmoreMike Huckabee   [UPDATED: NOT RUNNING]
Former Arkansas governor and 2008 presidential contender

[UPDATE: Huckabee announced on May 14, 2011 that he will not be running for president.]

Huckabee is squishy on climate science and appears to have flip-flopped on cap-and-trade.

On climate science: In 2007, Grist asked Huckabee, “Do you believe that human beings are the primary drivers of climate change?” He replied, “The honest answer is I don’t know. And for me, that’s not the issue. Instead of being wrapped into this political discussion of, ‘Is there global warming, and who caused it?,’ what we need to be saying is, ‘Look, let’s agree that we all have responsibility to present a better planet to the next generation.’ … Being a conservationist is the proper way to live, whether there is human-based global warming or not.”

Huckabee seems to hold the same view — whatever it is — today.

On climate policy: On cap-and-trade, though, Huckabee has changed his tune. At a climate conference in 2007, he said, “I also support cap-and-trade of carbon emissions. And I was disappointed that the Senate rejected a carbon-counting system to measure the sources of emissions, because that would have been the first and the most important step toward implementing true cap-and-trade.”

But in December 2010, Huckabee claimed he has only ever supported voluntary cap-and-trade. “This kind of mandatory energy policy would have a horrible impact on this nation’s job market. I never did support and never would support it — period,” he said.