Eric Guiltinan is a Ph.D. candidate at the University of Texas at Austin. He studies carbon dioxide sequestration as a member of the Center for Frontiers of Subsurface Energy Security. His research is focused on the wettability of caprocks and how it impacts their ability to trap large volumes of carbon dioxide. He has an M.S. in geology from California State University Long Beach and five years of experience working as an environmental consultant on a variety of water resource projects.