Stoking the fires for a possible third presidential run, Mitt Romney split with the majority of Republicans and said he believes humans contribute to climate change.
Romney argued "real leadership" is needed to deal with carbon pollution from coal plants, the Deseret News reported.
Romney's made the statement a day after the Republican-controlled Senate voted 98-1 that "climate change is real and not a hoax."
In a second vote, however, Republicans voted down a measure that specifically said humans "significantly" contribute to climate change.
Romney, the GOP's 2012 presidential nominee, has reportedly told donors he is weighing a third run in 2016.