John Gates University of Nebraska Earth and Atmospheric Sciences Lincoln, USA John Gates is the Harold and Esther Edgerton Assistant Professor in the Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln. His research includes geochemistry and hydrogeology of groundwater systems under the influence of land use and climatic changes. He received a Ph.D. from Oxford University in 2007 and was a Postdoctoral Fellow at the University of Texas at Austin until 2009. He currently serves on advisory boards for the Robert B. Daugherty Water for Food Institute, Nebraska Water Center, and Nebraska Water Sciences Laboratory, and is an Associate Editor for "Hydrogeology Journal."