Communicating the science of climate change, with its overwhelming expert consensus, seems like it should be easy. However, a science-averse media and strong fossil fuel lobby make it exceedingly difficult. Climatologist Michael Mann and cartoonist Tom Toles have teamed up to put climate change in context in their new book, The Madhouse Effect: How Climate Change Denial Is Threatening Our Planet, Destroying Our Politics, and Driving Us Crazy. I talked to both of them at this year's Annapolis Book Festival.