Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot.

Sen. John Curtis, a Republican from Utah, praised Zeldin's nomination, saying he helped get Republicans talking about climate ...

Regulators in California have announced they are withdrawing regulations that would phase out diesel trucks and would require truck drivers and trucking companies to buy what regulators say would be ...

A large area of greater Los Angeles had unhealthy air Friday, due to particulate matter from large wildfires. Here are tips ...