USA Today: What would God do? A rising chorus of voices is framing efforts to fight climate change in moral and religious terms — from the pope to a leading climatologist. “The predominant moral issue of the 21st century, almost surely, will be climate change, comparable to Nazism faced by Churchill in the 20th century and slavery faced by Lincoln in the 19th century,” writes James Hansen, director of the NASA Goddard Institute for Space Studies since 1981, recently in The Huffington …