Senator Marco Rubio of Florida, a Republican star and possible 2016 presidential candidate, said Sunday that he does not believe human activity is causing climate change.

"I do not believe that human activity is causing these dramatic changes to our climate the way these scientists are portraying it," Rubio said on US ABC's "This Week." "I do not believe that the laws that they propose we pass will do anything about it, except it will destroy our economy.".

Humans aren't causing a warming planet, US Presidential hopeful Rubio says.

A National Climate Assessment released by the White House last week found that Rubio's home state is one of the most vulnerable to rising sea levels and changes in temperatures and storm patterns. President Barack Obama has proposed several regulatory programs to reduce emissions of carbon dioxide, which most scientists say are the chief cause of a warming global climate.

Rubio said he doesn't agree that actions humans take today could affect how the climate is changing.