estimates, the commission now believes with 95% certainty that humans are the principle cause of climate change. the panel also warned that sea levels, one of the greatest threats posed by climate change, could rise by more than three feet in the next 80 years. these days even science is partisan. witness, speaker of the house, john boehner. the idea that carbon dioxide is a carcinogen that s harmful to our environment, it s almost comical. every time we exhale we exhale carbon dioxide. every cow in the world, you know, when they do what they do, you ve got more carbon dioxide. boehner s antiscience theorizing has been excode by other self-appointed people. the greatest hoax. a lot of our listeners out there are not aware that you have to have c o2.