This story has been updated with the latest air quality forecast. Officials extended the statewide air quality alert in ...

Forecasters have predicted that the heat and smoke will subside in some areas starting on Friday—but the air quality could worsen yet again this weekend in others.

Smoke from Canadian wildfires is triggering air quality alerts across 18 states, with hazardous conditions in parts of ...

Lollapalooza got its start in Phoenix. Here's a look at that game-changing day, from Jane's Addiction fighting to Nine Inch ...

More than 100 fires burning in Canada are impacting air quality in the Northeast U.S. Doctors say the exposure of heat and ...