Milwaukee experienced its worst air quality on record July 16 as smoke from Canadian wildfires blankets swathes of the ...

Smoke from ongoing Canadian wildfires has blanketed large parts of the United States, pushing air quality to hazardous levels ...

Canadian wildfire smoke is affecting air quality across parts of the U.S. Here's who's at risk and how to protect yourself.

Canadian wildfire smoke is expected to spread toward the Northeast, but will it reach as far south as Washington DC? Here's ...

The Canadian Wildland Fire Information System reported 893 active wildfires Friday, with nearly 3 million acres burned. Smoke maps show a large plume from Canada contributing to p ...

Canada is experiencing its most destructive wildfire season on record, as hundreds of blazes burning from coast to coast continue to send tremendous plumes of smoke into the atmosphere — and over the ...

As if he intense heat and elevated ozone levels weren't enough, smoke from Canadian wildfires is expected to further worsen ...