Canada's record-breaking 2023 wildfires exposed more than 350 million people in North America and Europe to air pollution that likely contributed to tens of thousands of deaths, according to new ...

As deadly wildfires raged in the Canadian province of Manitoba this summer, Republican lawmakers in nearby US states penned letters asking that Canada be held accountable for the smoke drifting south.

The summer of 2025 has been another harrowing season for wildfires in Canada, testing the country’s landscapes and communities and also its firefighting capacity and institutional resilience (and has ...

Over 87,000 premature deaths worldwide can be traced to the impact of Canada's explosive 2023 wildfire season, new research estimates. Fires burned 71,043 square miles (18.4 million hectares) of ...

Hundreds of wildfires burning in Canada are undermining U.S. air quality across the Upper Midwest and Northeast, making skies hazy from Detroit to New York City and even prompting a ground stop at ...

Smoke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National Weather Service (NWS) has issued air quality alerts for Minnesota and Wisconsin, ...

More than 100 million Americans from Iowa to Maine started Thursday under air quality alerts as wildfire smoke from Canada continues to drift into the U.S. The worst air quality was reported in a ...

Air quality in the Upper Midwest region of the U.S. dropped to harmful levels in cities like Chicago and elsewhere in the Great Lakes region, as harmful smoke from persistent wildfires in Canada ...

At times over the past three years, our area has experienced heavy smoke that drifted down from wildfires in Canada and the northwestern U.S. There were days when you could barely see a half mile down ...

Canada's worst wildfire season yet is continuing to spew smoke across the U.S., affecting air quality for 20 states Monday. Smoke drifted through the Northeast and Midwest to start the week, ...

Canada’s record-breaking 2023 wildfires exposed more than 350 million people in North America and Europe to air pollution. Scientists say extreme wildfires have become larger, more frequent and more ...