clean air act (united states)

Trump’s EPA Pushes to Dismantle Key Scientific Rule Critical for Climate Regulations
The U.S. Environmental Protection Agency (EPA) recently proposed a significant change: revoking a key finding that confirms pollution from climate ... Read more

Opponents Challenge Arizona Air Permit for Copper World Open-Pit Mine: What You Need to Know
Opponents of the Copper World mine are challenging a state air quality permit. They believe Arizona should have enforced stricter ... Read more