Learn about the work of Casey Schmidt, Ph.D., an assistant research professor of biogeochemistry at the Desert Research Institute in Reno, Nev. He specializes in ecological engineering, which is a field of study that combines elements of engineering, ecology and design to help solve environmental problems. Casey holds a Ph.D. and M.S. in soil and water science from the University of Florida, and a B.S. in biology from the University of Washington.