Classic Mitt, he’ll say anything, believe anything, and promise anything as long as it gets him elected.

(Politico) — Hours after being called “mushy on environmental issues” by a Republican senator, Mitt Romney has tweaked his position on global warming.

Asked Wednesday at a Lebanon, N.H., town hall meeting whether he believed in global warming and if humans contribute to rising temperatures, Romney said he doesn’t know.

“Do I think the world’s getting hotter? Yeah, I don’t know that but I think that it is,” Romney said, as reported by Reuters. “I don’t know if it’s mostly caused by humans.”

“What I’m not willing to do is spend trillions of dollars on something I don’t know the answer to,” he added.

Just two and a half months ago in New Hampshire, Romney expressed concern about climate change and greenhouse gas emissions.

On Wednesday, Oklahoma Sen. Jim Inhofe, a leading climate skeptic, said he plans to formally endorse Texas Gov. Rick Perry — in part because of Perry’s environmental record.