Pollution regulations began after the Environmental Protection Agency formed in 1970. The Trump administration has recently ...

Before the EPA, the US environment was not federally protected. Vintage photos show Los Angeles before regulations limited ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...