itself a collaborative tool. From 1956 to 1963, Odum worked as the director of the Marine Institute of the University of Texas. During this time, he became aware of the interplay of ecological-energetic and economic forces. He taught in the Department of Zoology at the University of North Carolina at Chapel Hill, and was one of the professors in the new curriculum of Marine Sciences until 1970. That year he moved to the University of Florida, where he taught in the Environmental Engineering Sciences Department, founded and directed the Center for Environmental Policy, and founded the university's Center for Wetlands in 1973; it was the first center of its kind in the world that is still in operation today. Odum continued this work for 26 years until his retirement in 1996. In the 1960s and 1970s, Odum was also chairman of the International Biological Program's Tropical Biome planning committee. He was supported by large contracts with the United States Atomic Energy Commission, resulting in participation by nearly 100 scientists, who conducted radiation studies of a tropical rainforest. His featured project at University of Florida in the 1970s was on recycling treated sewage into cypress swamps. This was one of the first projects to explore the now widespread approach of using wetlands as water quality improvement ecosystems. This is one of his most important contributions to the beginnings of the field of ecological engineering. In his last years, Odum was Graduate Research Professor Emeritus and Director of the Center for Environmental Policy. He was an avid birdwatcher in both his professional and personal life. The Ecological Society awarded Odum its Mercer Award to recognize his contributions to the study of the coral reef on Eniwetok Atoll. Odum also received the French Prix de Vie, and the Crafoord Prize of the Royal Swedish Academy of Science, considered the Nobel equivalent for bioscience. Charles A. S. Hall described Odum as one of the most innovative and important thinkers of the time. Hall noted that Odum, either alone or with his brother Eugene, received essentially all international prizes awarded to ecologists. The only higher education institute to award honorary degrees to both Odum brothers was Ohio State University, which honored Howard in 1995 and Euene in 1999. Odum's contributions to ecosystems ecology have been recognized by the Mars Society, who named their experimental station the "H. T. Odum Greenhouse" at the suggestion of his