On January 2, 2026, the D.C. Circuit declined to rehear en banc its prior order restoring the Clean Air Act’s (CAA) Title V affirmative defense ...

In its Friday update, the EPA said, "These plants are vital to delivering reliable and affordable energy to Colorado families ...

MACH Engineering reports factory air emissions harm health, environment, and businesses. Controlling emissions is vital for ...

In government records that have flown under the radar, the EPA is questioning its legal authority to revise pollution rules ...

MACH Engineering reports that industrial air pollution harms economies by increasing healthcare costs and reducing ...

The U.S. Environmental Protection Agency on Friday rejected Colorado’s latest air-quality plan aimed at improving visibility ...

The Trump administration’s EPA has finalized its rejection of closing a coal-fired power plant in Colorado, drawing sharp ...

The Clean Air Act has saved millions of lives, but the EPA will stop calculating those benefits for at least some proposed ...

Semitruck-sized power generators that data centers use must comply with Clean Air Act standards, officials ruled on Thursday.

Experts fear consequences will include health complications, stalled industry, a society further disconnected from science ...