Freeway north of LA is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...

A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution on Friday. The maps showed data for multiple types of pollutant, including ...

As Los Angeles grew exponentially in the mid-1900s and the car became the apple of capitalism's eye, the smog arose and ...

The 72-year-old former mayor (Pasadena), city manager (Ventura, Azusa, Santa Monica) and deputy mayor (Los Angeles) returned ...

"Roots of Cool" is an all-women art show focused on the role trees (and the shade they provide) play in making urban life ...