We regret to report the sudden passing of Thomas P. Simon, Ph.D., 57, of the School of Public and Environmental Affairs at Indiana University Bloomington on July 16. Simon’s research investigated water pollution and resource management in freshwater systems. He had previously worked with the U.S. Fish and Wildlife Service and the Environmental Protection Agency, where he was awarded three Congressional Bronze Medals. Simon authored 16 books and had over 370 professional publications.