Brian Fagan Emeritus professor of anthropology, UC Santa Barbara

Brian Fagan was born in England and spent several years doing fieldwork in Africa. He is emeritus professor of anthropology at the University of California, Santa Barbara. He is the author of Cro-Magnon, the New York Times bestseller The Great Warming, and many other books, including Fish on Friday: Feasting, Fasting and the Discovery of the New World and several books on climate history, including The Little Ice Age and The Long Summer.