Brower, David Dean of the Modern Environmental Movement (1912–2000)

Brownfield

Brundtland, Gro Norwegian Prime Minister and Environmentalist (1939–)

Burn Barrels

Carbon Monoxide

Careers in Environmental Protection

Carson, Rachel Scientist, Ecologist, Writer of Silent Spring (1907–1964)

Carver, George Washington Farmer, Agricultural/Food Scientist, Educator (1805–1943)

Catalytic Converter

CFCs (Chlorofluorocarbons)

Chávez, César E. Founder of United Farm Workers of America (1927–1993)

Citizen Science

Citizen Suits

Clean Air Act

Clean Water Act

Cleanup

Coal

Colborn, Theo American Environmentalist, Coauthor of Our Stolen Future (1927–)

Commoner, Barry American Environmentalist, Writer, and Professor of Biology (1917–)