Canadian wildfire smoke descended into the Upper Midwest again on Monday, heightening the risk of physical health impacts.

As record wildfires erupt across Canada this year, with health-threatening smoke drifting into the U.S. and as far away as ...

As Canadian wildfires continue to affect air quality across parts of the US, including Minnesota and Wisconsin, US lawmakers are seeking clarity on how Canadian officials are managing the growing ...

Manitoba is looking to expand the infrastructure it has to monitor air quality, a step experts say is important to better map ...

People living in the West much more likely than those in the rest of the country to have taken action to reduce wildfire risk ...

Ground slumping in yedoma permafrost after a wildfire, in the interior of Alaska. Yedoma permafrost generally contains large ...

Many people felt the impact of the air quality on Saturday. It's stemming from the wildfire smoke in Canada, officials say it ...

MINNEAPOLIS — Poor air quality in the Twin Cities due to Canadian wildfire smoke has caused the KARE 11 Weather team to issue ...

The final two weeks of June saw Environment Canada issue heat warnings, with temperatures rising between 30 and 36 degrees ...

BISMARCK, N.D. -- Much of the Upper Midwest on Saturday was dealing with swaths of unhealthy air because of drifting smoke from Canadian wildfires, covering the northern region of the U.S. at a time ...

For farmers, the past several months have been “really tough for them and their crops,” an Idaho wheat commissioner said.