Environmental Defense Fund
Environmental Defense Fund or EDF is a United States–based nonprofit environmental advocacy group. The group is known for its work on issues including global warming, ecosystem restoration, oceans, and human health, and advocates using sound science, economics and law to find environmental solutions that work. Wikipedia*
On the C-SPAN Networks:
Environmental Defense Fund has hosted 2 events in the C-SPAN Video Library; the first program was a 1987 News Conference.