According to the National Park Service:
The Cuyahoga River is a famous ecosystem. Today its flowing water supports fish and insects that feed birds and amphibians along its muddy banks. But the river wasn’t always so full of life. The Cuyahoga River has a very polluted past. The river between Akron and Cleveland was dangerously dirtied by a century of dumped factory waste and sewage from cities. In the summer of 1969 a floating pile of oil-soaked logs and other trash caught fire on the river in Cleveland. The Cuyahoga River became known as the river that burned.
News of a river so polluted that it caught on fire made people demand action. The Cuyahoga River’s sad state sparked the modern environmental movement in America. The Environmental Protection Agency was created and legislators passed pollution control and clean-up laws. The fire even helped inspire the first Earth Day in 1970. Thanks to decades of clean-up work, the Cuyahoga River is on the mend.
