From the publisher, John Wiley & Sons:

"Melvin A. Benarde, PhD, is the author of ten books, including Global Warning, Global Warming (Wiley) and previous editions of Our Precarious Habitat. He is the former director of Temple University's Environmental Resource Center and a professor in their Graduate Program in Industrial Hygiene, professor and acting chairman in the Department of Community Medicine at Hahnemann Medical School, and Associate Director of the Environmental Studies Institute at Drexel University. Dr. Benarde has studied environmental issues and their impact on human health for more than three decades."

Dr. Benarde read from his book Our Precarious Habitat ... It's in Your Hands.