Following the shooting death of a Democratic Minnesota lawmaker in June, Assemblymember Mia Bonta wants to beef up a state ...

Millions of Americans across parts Arizona, Colorado, and Connecticut were advised to avoid driving and limit outdoor activities after officials issued air quality alerts warning of potentially ...

With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the nation’s worst air pollution. But officials face growing pushback about ...