Experts say people should take precautions such as wearing an N95 mask while outdoors or heading inside and closing the windows.

The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for all of Minnesota starting Saturday at 11 ...

Smoke from Canadian wildfires started making air quality worse in the eastern U.S. on Wednesday as several Midwestern states ...

Wildfires have forced another 1,000 people to flee their homes in the Canadian province of Manitoba, which is under a state ...

Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

Scientists are using new techniques to identify previously undetected layers of cloud in the atmosphere, layers which will ...

The Michigan Air Quality Division said as smoke from Canadian wildfires continues to threaten the upper Midwest, "monitors in ...

Unsettled weather for now, but the pattern flips again with heat and possible smoke on the horizon. We really seem to be in a ...

About 200 fires are actively burning in Canada and have consumed about 19,900 square kilometres of terrain, most of it in the ...

2023 smashed the record for the hottest year, but it might have been even hotter. The entire northern hemisphere would have been nearly 1°C warmer on average during its summer without the cooling ...