Here's what's actually coming out of the exhaust pipe of a typical gasoline-powered car.

An explosion at a Los Angeles County Sheriff’s Department training facility killed three veteran deputies from the arson and ...

An explosion at a Los Angeles law enforcement training facility that left three deputies dead was being investigated as a ...

Comedian Shane Gillis ’ opening monologue as host of the ESPYS went over awkwardly in front of some of the biggest names in ...

The Trump administration said Tuesday it is ending the deployment of 2,000 National Guard troops in Los Angeles.

As record wildfires erupt across Canada this year, with health-threatening smoke drifting into the U.S. and as far away as ...

California to Host Series of Public Sessions in Effort to Advance Progress on Zero Emission Vehicle Adoption – First Meeting ...

These 10 states offer residents the best quality of life across several factors, such as low crime rates, good air quality, ...

Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S.

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

Los Angeles braces for a hot day with an Air Quality Alert due to high ozone levels, affecting sensitive groups and advising precautions like staying indoors and limiting outdoor activities.

Los Angeles County is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...