It was like deja vu all over again as Alan D. Hecht, Ph.D., Office of Research and Development with the U.S. Environmental Protection Agency visited the University of Michigan in early January to deliver a cautionary tale about the importance of sustainability to the global environment. Hecht was back in town recently (as he was 15 years ago to commemorate the EPA's 35th anniversary) to refresh the message as the EPA turns 50 years old.