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 ...

An Air Quality Health Advisory due to the wildfires in Canada has been issued for Niagara County through 11:59 p.m. today.

Smoke from ongoing Canadian wildfires in Saskatchewan and Manitoba will be ushered into the Great Lakes regions, causing a ...

Prepare for poor air quality from Canadian wildfire smoke and rising temperatures today, with rain and thunderstorms expected ...

A historic lodge on the Grand Canyon's North Rim along with 50 to 80 other structures have been destroyed by a wildfire.

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 ...

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 ...

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 ...

A preliminary assessment by the Indian authorities said fuel was cut off to both engines shortly before Air India Flight 171 crashed last month, appearing to rule out mechanical failure or design ...