William Cunningham is an Emeritus Professor at the University of Minnesota where he taught for 36 years in the Departments of Botany and Genetics and Cell Biology as well as the Conservation Biology Program, the Institute for Social, Economic, and Ecological Sustainability, the Center for Environmental Learning and Leadership, and the McArthur Program in Global Change. He received his Ph.D. in Botany from the University of Texas in 1963 and spent two years at Purdue University as a postdoctoral fellow. At various times, he has been a visiting scholar in Sweden, Norway, Indonesia, and China, as...