Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

A thin veil of smoke from wildfires burning in Canada is worsening air quality and putting a lid on temperatures in the D.C.

There's no doubt firefighting is a dangerous job, but some of the biggest risks aren't just the flames. It's what lingers ...

Smoke from the Gifford Fire was hovering over parts of the county, resulting in sooty air quality and possible ash falling ...

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

The smoke from Canadian wildfires that has lingered in Upstate New York this week should subside on Thursday. No air quality ...

The smoke drifting across the border contains fine particulates, pollution so small that it’s basically invisible to the ...

Rep. Calvin Callahan joined lawmakers from Iowa, Minnesota and North Dakota in filing a formal complaint against Canada over ...

As smoke begins to dissipate, Michigan's statewide advisories have ended, though some remain for Upper Peninsula and northern ...

Seven Michigan Republicans in Congress want Canada to contain and prevent future wildfires, noting it's the third summer ...

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air ...