On June 22, 1969 the polluted Cuyahoga River caught on fire. The river didn't just burn in Cleveland - it burned in the nation's imagination. The country was beginning to pay attention to what was happening to its natural resources. The fire started a whole chain of events that hasn't stopped yet. These events included the Clean Water Act, the Clean Air Act, Earth Day, the creation of Environmental Protection Agencies at the federal and state levels, and a rapidly growing consciousness about the environment in America. The Cuyahoga is America's best example yet of a watery success story. The dead river came clean - and back to life again.

Sunday, 8/31/08 from 4-5 p.m. ET