Paul Ehrlich is the Bing Professor of Population Studies, Emeritus and President of the Center for Conservation Biology at Stanford. He has carried out field, laboratory and theoretical research on the dynamics and genetics of insect populations, the evolutionary interactions of plants and herbivores, the behavioral ecology of birds and reef fishes, the effects of crowding on human beings, human cultural evolution and health problems related to industrialization. He is author and coauthor of more than 1,100 scientific papers and articles and over 40 books. Ehrlich is a member of the U.S. National Academy of Sciences, the American Philosophical Society and a Foreign Member of the Royal Society. Among his many other honors is the Royal Swedish Academy of Sciences, Crafoord Prize (an explicit replacement for the Nobel Prize). He has appeared on more than 1,000 TV and radio programs and was a correspondent for NBC News.