Slate: Climate scientist Katharine Hayhoe, an evangelical Christian, has had quite a run lately. A few weeks back, she was featured in the first episode of the Showtime series The Years of Living Dangerously, meeting with actor Don Cheadle in her home state of Texas to explain to him why faith and a warming planet aren't in conflict. (You can watch that episode for free on YouTube; Hayhoe is a science adviser for the show.) Then Time magazine named her one of the 100 most influential people of 2014. Cheadle...