Under the Clean Air Act, the EPA must regulate any pollutant that can “reasonably be anticipated to endanger public health or welfare.” The act defines a pollutant as “any physical, chemical, ...

The decision may have dire effects. Senate votes to block key energy regulation — here's how it could affect your utility ...

The moves to slash environmental and public health protections weaken rules dealing with a range of health threats.

President Trump has repeatedly said he’ll take on toxic chemicals — but many of his administration’s actions are expected to ...

A study suggests carbon dioxide may benefit agriculture, challenging the EPA's assumptions about climate change's impact on ...