If you’ve ever listened to a Republican-stacked talking head show, you probably think that scientists are evenly split about whether or not global climate change is real. And while they’ve been successful at making this point over and over again, the truth is that there is no debate in the scientific community. Human beings are responsible for climate change and scientists know that. So how did corporate America and the GOP convince us all that this was in doubt? Through decades of crafty public relations and by using their echo chambers, they’ve made Nobel prize-winning scientists look like mental patients. Mike Papantonio talks about how this shift occurred with Jim Hoggan, author of the new book Climate Cover-Up.