Canada is having its second worst wildfire season yet. Two scientists explain what a red air alert means and how anyone living in impacted areas can protect themselves.

Freeway corridor near Santa Clarita, Western San Gabriel Mountains/Highway 14 Corridor and Eastern San Gabriel Mountains are under an air quality alert which was reported by the National Weather ...

As Vermont encounters its third day of poor air quality, state officials say that dealing with wildfire smoke pollution is “going to be a part of our future.” ...

We can expect increasingly hot and humid conditions over the next few days, with scattered thunderstorms and potential heat ...

Rep. Calvin Callahan joined lawmakers from Iowa, Minnesota and North Dakota in filing a formal complaint against Canada over wildfire smoke.

Dry lightning will be a small threat later this afternoon as several very minor storm cells cross the region. No moisture is expected to reach the ground, but dry lightning may still be present. Dry ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts ...

An air quality alert in the Chicago area has been extended for another day as Canadian wildfire smoke continues to plague the ...

Syracuse, N.Y. -- The smoke from Canadian wildfires that has lingered in Upstate New York this week should subside on ...

Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

Wildfire smoke has returned to Pennsylvania, but its impact on air quality so far is far less severe than what the region ...

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro ...