In 1997, the National Pollution Prevention Center updated the 1994 edition of the Directory of Pollution Prevention in Higher Education: Faculty and Programs to list 402 pollution prevention educators. The Directory describes activities of people currently involved in integrating pollution prevention concepts into curricula; includes extensive contact information and appendices.
The first edition of the Directory, published in 1992, was prepared by Nandkumar Bakshani, Ph.D., of the University of California - Los Angeles, and David Allen, Ph.D., now at the University of Texas - Austin. It was updated in 1994 by Joanne Goodwin and Pamela Bloch of the University of Michigan. Each time the number of entries doubled.