Paul R. Ehrlich is Bing Professor of Population Studies and Professor of Biological Sciences at Stanford University. The author of The Population Bomb, Human Natures, and many other books, Ehrlich is a member of the National Academy of Sciences and a recipient of the Crafoord Prize (an explicit substitute for the Nobel Prize in fields of science in which the latter is not given).
Anne E. Ehrlich is affiliated with Stanford's Department of Biological Sciences and Center for Conservation Biology. She has served on the board of the Sierra Club and other conservation organizations, has coauthored ten books with her husband, and is a recipient of the Tyler Prize for Environmental Achievement.