We all want to think of our homes as our indoor sanctuaries — a place sealed off from the grit and grime of the outdoor world. But before you lean too hard into embracing 2025's cozy homebody era ...

San Francisco becomes the first U.S. city to achieve major reductions in PM2.5 and NO₂ pollutants.

Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...

A trio of judges found that EPA erred in eliminating affirmative defenses for some pollution violations at major facilities. Environmental and community advocates are seeking do-overs of two recent ...