Republican lawmakers are blaming Canada for not preventing and containing wildfires, whose smoke has fouled the air in ...

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

Air quality remains poor in parts of Canada as wildfire smoke travels along the jet stream — with Europe now in its path.

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air quality there. On August 1 conditions are particularly bad in Minnesota ...

Canadian wildfire smoke brings poor air quality to Midwest as flood threat looms in Carolinas Minneapolis, Chicago and Detroit rank in the top 10 for worst air qualities.

The metro area could see a high level of fine particulate matter drifting down from Canada where 121 fires are burning in the Manitoba province.

Canada's historic wildfires are accelerating climate change by releasing billions of tons of carbon while politicians approve new fossil fuel projects.

Canadian wildfire smoke will continue to impact Wisconsin's surface air quality over the next several days. The current advisory in effect statewide until noon on Thursday, July 31 has been ...

Canadian wildfire smoke is lingering in Maine. Here’s what you should know before heading outside. While alerts have been downgraded from 'unhealthy for sensitive groups' to 'moderate,' the air ...

The Canadian government’s map of wildfire smoke fine particulate matter models wildfire smoke for July 30-Aug. 2 shows smoke will intensify over Manitoba and Ontario. The conditions have ...