Marcus Gary is a karst scientist who specializes in conducting hydrogeologic investigations to expand the understanding of karst forming processes, and study the implications that karst geology has on natural resource management. Gary received his Ph.D. in hydrogeology from the Jackson School of Geosciences at the University of Texas at Austin in 2009, and a B.S. degree from the same institution in 2001. He worked for eight years as a hydrologist for the U.S. Geological Survey, four years in environmental consulting, and is now currently a senior hydrogeologist for the Edwards Aquifer Authority in San Antonio, Texas.