BiographyDavid Ervin is professor of environmental management, professor of economics, and a fellow in the Institute for Sustainable Solutions at Portland State University. His research program includes projects on ecosystem services, business environmental management, and the potential role of genetically engineered crops in agricultural sustainability. He is a codirector of the Integrated Graduate Education, Research, and Training program, Ecosystem Services for Urbanizing Regions, and coprincipal investigator of the Spatially-Explicit Assessment of Ecosystem Services Shifts under Climate Change, both funded by the National Science Foundation.