Romney: 'The world is getting warmer...'

Stick a fork in Mitt?

Presidential hopeful Mitt Romney broke with Republican orthodoxy on Friday by saying he believes that humans are responsible, at least to some extent, for climate change.

"I believe the world is getting warmer, and I believe that humans have contributed to that," he told a crowd of about 200 at a town hall meeting in Manchester, New Hampshire.

"It's important for us to reduce our emissions of pollutants and greenhouse gases that may be significant contributors."

He did add that other countries shouldn't get a "free pass" in dealing with "global warming" (his phrase):

"I love solar and wind (power) but they don't drive cars. And we're not all going to drive Chevy Volts," he said referring to electric cars.

The United States can not go it alone in attempting to trim emissions levels and give a free pass to countries such as China and Brazil, Romney said. "It's not called American warming, it's called global warming," he said.