New measurements demonstrate that smoke particles in the upper atmosphere are twice the size of lower-altitude ones.

Three summers ago, the Caldor Fire burned its way up the Western Slope into the Tahoe Basin, scorching 221,835 acres. The fire burned for over two months, cloaking the lake and its surrounding ...

Residents living near where a wildland fire is burning or those in the vicinity of the smoke are told to stay indoors or leave the area altogether because of the contaminants the smoke is known to ...

A new study shows LA wildfires caused hidden health problems, including heart attacks and lung illness, weeks after fires ...

Just when you thought you could finally enjoy some decent weather, Mother Nature decides to remind you that she’s still the boss. Wildfire smoke from Canadian fires is drifting south like an unwelcome ...

Mar. 21—Residents living near where a wildland fire is burning or those in the vicinity of the smoke are told to stay indoors or leave the area altogether because of the contaminants the smoke is ...

New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! Subscribe today. In recent years, ...

It's not just sensitive populations who are at risk in the current poor air quality conditions covering a large swath of the U.S., due to the wildfires burning in Canada. Inhaling toxic smoke and ash ...

Traveling smoke from Canada's wildfires created an orange-tinged smog that shrouded New York City on Wednesday, obscuring its famous skyscrapers and causing residents to don face masks, as cities ...