But then Rubio proceeded to give a confusing explanation as to why he opposes cap and trade legislation to curb carbon emissions. And he apparently didn't touch whether he believes climate change is caused by humans.
"What I disagree with is the notion if we pass cap and trade, for example, this will stop this from happening, when in fact half of the new emissions on the planet are coming from developing countries and half of that is coming from one country, China, that isn’t going to follow whatever laws we pass," he said, indicating that he might think emissions have a negative impact on the environment.
Rubio said he supported "advances in technology and innovation that makes us cleaner and more efficient," but then hedged again and suggested there isn't a clear link between human activity and severe weather patterns.
"But for people to go out and say 'if you pass this bill that I am proposing this will somehow led us to have less tornado and less hurricanes' that's just not an accurate statement and that's what I take issue with," he said, according to the Washington Post.
But none of that exactly contradicts what Rubio said on ABC's "This Week" on Sunday when he pushed back against the notion of manmade climate change.
"Our climate is always changing," Rubio said on the show. "And what they have chosen to do is take a handful of decades of research and say that this is now evidence of a longer-term trend that's directly and almost solely attributable to manmade activity, I do not agree with that."