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

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

As of Aug. 6, there are about 750 active Canadian wildfires, with at least 190 labeled “out of control,” according to the ...

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

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

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

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

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

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...

Each New England state has seen an uptick in the number of days over the last five years when fine particulate matter (PM2.5) ...

The satellite imagery shows the wildfire smoke as a fuzzy white look on the images. The wildfire smoke is thick just to ...

Hazy skies aside, summer is finally delivering something we haven’t enjoyed in a long time: A long stretch of pleasant ...