“What are you being so mean for, miss?” asks Humphrey Bogart’s character in “The African Queen.” “A man takes a drop too much once in a while, it’s only human nature.” Katharine Hepburn’s character ...

NPR's Scott Simon talks to climate scientist Kate Marvel about her new book, "Human Nature." It's a look at our changing planet through the lens of nine very human emotions. Kate Marvel, the climate ...