Dr. David Allen is the Gertz Regents Professor of Chemical Engineering, and the Director of the Center for Energy and Environmental Resources, at the University of Texas at Austin. Dr. Allen has been a lead investigator for multiple air quality measurement studies, including studies that made some of the first measurements of methane emissions from unconventional oil and gas production. He directs the Air Quality Research Program for the State of Texas, and he is the founding Editor-in-Chief of the American Chemical Society’s journal ACS Sustainable Chemistry & Engineering. He has served on a variety of governmental advisory panels and from 2012 to 2015 chaired the U.S. Environmental Protection Agency’s Science Advisory Board. In 2017, he was elected to the US National Academy of Engineering. Dr. Allen received his B.S. degree in Chemical Engineering, with distinction, from Cornell University in 1979. His M.S. and Ph.D. degrees in Chemical Engineering were awarded by the California Institute of Technology in 1981 and 1983. He has held visiting faculty appointments at the California Institute of Technology, the University of California, Santa Barbara, and the U.S. Department of Energy.