Warmer temperatures might be causing plants to emit more chemicals into the atmosphere, adding to one of Phoenix's worst air ...

The deadly Los Angeles wildfires turned neighborhoods into ash and have forced almost 180,000 people to evacuate.

The use of dirty energy has exacerbated rising global temperatures, resulting in hotter, more intense heat waves in cities ...

Wildfires continue to burn in Southern California, but even with winds not as gusty on Thursday, conditions remain volatile ...

Monday’s NFL Wild Card playoff game has been moved from California to Arizona. The game was initially scheduled to be played at SoFi Stadium in Englewood, ...

The Vikings' NFL playoff game Monday night against the Rams was moved to Glendale, Ariz., because of multiple wildfires that ...

After the fires get under control, wind could help push some particles out of the air, as will gravity with some larger compounds. Gases and fine particles could hang around longer. In burned areas, ...

Norovirus, or the stomach flu, is on the rise across the U.S. The latest data from the Centers for Disease Control and Prevention (CDC) suggests that cases have gone up ...

From December into January there have been numerous air quality alert days. The top contributor this time of year is the holiday fireworks.

Here is the view from live cameras in the Los Angeles area, from Pacific Palisades to Altadena to the Hollywood Hills, showing wildfires scorching acre after acre.