The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

The smoke from the wildfires that burned through Los Angeles in January smelled like plastic and was so thick that it hid the ...

Smoke from Canadian wildfires has blanketed Michigan this summer, with 31 days of warnings for parts of Michigan..

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...

Firefighters were concerned Sunday about the possibility of fire spreading under trees and a warming forecast later in the ...

State officials are encouraging Michiganders who own their own air quality sensors to contribute their readings to ongoing ...

Firefighters are tackling a major moorland wildfire for a sixth day, with smoke from the blaze visible up to 80 miles (128km) ...

Republican lawmakers are blaming Canada for not preventing and containing wildfires, whose smoke has fouled the air in ...

Researchers are now assessing the mortality impacts of wildfire smoke, as it contains pollutants like PM2.5 that have been ...

Some Team P.E.I. athletes are back on the Island after taking part in the Canada Games, where their competition was ...

Last week, smoky haze from wildfires raised concerns about outdoor activities for kids during recess, lunch, and after-school ...

Tens of thousands of people who fight wildfires spend weeks working in toxic smoke and ash wearing only a cloth bandanna, or ...