John C. Crittenden, Ph.D., P.E., F. ASCE, NAE, CAE, is the director of the Brook Byers Institute for Sustainable Systems, Hightower Chair and Georgia Research Alliance Eminent Scholar in Sustainable Systems at the Georgia Institute of Technology. He is a member of the U.S. and Chinese National Academies of Engineering and was selected as one of the 100 Pre-Eminent Chemical Engineers of Modern Times by AIChE. The American Society of Civil Engineers named Dr. Crittenden the recipient of the 2020 Simon W. Freese Environmental Engineering Award and Lecture, which recognizes “extraordinary accomplishments in using fundamental scientific principles and current research findings to solve the most challenging water quality problems.”