Romney: Earth is warming, emissions cuts needed

Republican White House candidate Mitt Romney said Friday that global warming is real and that human activity is among the causes.

Reuters reports from New Hampshire:

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, N.H.

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

The story later adds:

The United States cannot 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.