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

Wildfires burning in Canada were causing unhealthy air quality across parts of North America on Monday. Canadian wildfires ...

An air quality advisory is in effect for New York City on Monday due to wildfire smoke from Canada, according to officials.

With hundreds of wildfires burning across Canada, smoke has drifted into the northern United States, lowering air quality ...

New York City air quality is dropping as Canadian forest-fire smoke swirls down the Hudson River, shrouding much of the ...

Wildfires continue to burn across a massive area in Canada, particularly in the provinces of Saskatchewan and Manitoba.

Smoke from wildfires burning in Canada is filling the skies high above New Hampshire for Monday, triggering concerns about ...

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

More than 739 fires are burning in Canada, and smoke crossing the border has triggered air quality alerts in several U.S.

Smoke from hundreds of active wildfires in Canada has drifted southward, contributing to degraded air quality across the ...

Canadian wildfire smoke has affected Wisconsin all week, prompting multiple air quality alert extensions from the DNR.

The low visibility caused by the smoke haze reached a safety threshold that forced an operational pause and delays flights into and out of BOS. ABC News reports that at least 742 different fires are ...