Throughout human history, we have been deeply affected by our environment, particularly climate. At certain times there have been such alterations in climate that they amount to cultural shocks, resulting not only in famine, disease, and violence, but also in religious changes.

That's the argument presented by this week's guest, Philip Jenkins, in his new book Climate, Catastrophe, and Faith: How Changes in Climate Drive Religious Upheaval. We discuss the mechanisms by which the climate is altered, and then alters human history, particularly religious history. Then we move on to discuss several periods of climatic shock that resulted in religious change; and speculate about how future climate change will change world religion. Finally I ask Jenkins for his secrets of being a highly productive historian, and whether or not all of his books are just chapters in an enormous book.

Philip Jenkins is Distinguished Professor of History at Baylor University, where he is also Co-Director of the Program on Historical Studies of Religion.