32:05
Brownfield basics
After addressing terms and concepts essential to an understanding of brownfields, this program turns to author Storm Cunningham and Robert Colangelo, executive director of the National Brownfields Association, for historical background on the proble...
40:32
Issues in water quality
The U.S. needs more than 340 billion gallons of fresh water every day, but industrial effluent, agricultural runoff, and municipal discharge are contributing to an ongoing decline in water quality. In this program, Marty Tittelbaum, of the Universit...