When Earth Day started in 1970, vehicles running on leaded gas averaged 12 miles a gallon on U.S. highways. The year before, an oil slick on Cleveland's polluted Cuyahoga River famously caught fire. That first Earth Day involved teach-ins and demonstrations, which soon led to the creation of the Environmental Protection Agency, and legislation like the Clean Air Act.
Now, Earth Day involves over a billion people worldwide, including volunteers and staffers with the Seattle-based EarthCorps. The nonprofit’s development manager Kesia Cisse told KUOW’s Kim Malcolm about her organization's work.