Marco Rubio: 'Human activity' is not 'causing these dramatic changes to our climate'

Sen. Marco Rubio (R-FL) asserted recently that there was nothing that humans could do to stop climate change because it was not caused by humans, and that any new laws would only "destroy our economy."

In an interview that aired on Sunday, ABC's Jonathan Karl asked the Florida Republican if he agreed with scientists who said that two of the cities in his state were being threatened by climate change.

"I don't agree with the notion that some are putting out there -- including scientists -- that somehow, there are actions we can take today that would actually have an impact on what's happening in our climate," Rubio insisted. "Our climate is always changing. 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 don't know of any era in world history where the climate has been stable," he added. "Climate is always evolving. Natural disaster have always existed."

"But let me get this straight," Karl interrupted. "You do not believe human activity -- C02 -- has caused warming to our planet?"

"I do not believe that human activity is causing these dramatic changes to our climate the way these scientist are portraying it," Rubio said. "And I do not believe the laws that they propose we pass will do anything about it. Except, it will destroy our economy."

Watch the video below from ABC's This Week, broadcast May 11, 2014.