In 2023, Canada's worst wildfire season on record produced so much smoke that it spilled across national borders into the United States. At times, a thick haze enveloped much of the U.S. East Coast ...

Smoke from wildfires is not something to be taken lightly, as it impacts air quality for miles. The danger of it can be measured on the air quality index (AQI), a scale that goes from zero to over 300 ...

Smoke from ongoing wildfires across Canada continued to drift into parts of the United States on Wednesday, causing hazy skies and triggering air quality alerts in multiple states across the upper ...

Canada's worst wildfire season on record tarnished the country's air quality and had similar effects on pollution in parts of the United States, according to a new report. University of Chicago ...

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 ...

Amid thousands of evacuations and the spread of smoke to the United States, the Canadian armed forces and the Coast Guard were summoned to help battle the blazes. By Ian Austen and Amy Graff Ian ...

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 ...

GREEN BAY, Wis. (WLUK) -- Smoke from Canadian wildfires has impacted Wisconsin several times this summer and in recent years. Now, Wisconsin Republicans are reaching out to the Canadian government, ...

Wildfires have been occurring frequently in Canada in 2025, a worrying milestone for the global climate crisis. Extreme heat, prolonged drought, and strong winds have combined to create ideal ...

WINNIPEG, Manitoba, Aug 18 (Reuters) - Canada's second-worst wildfire season on record has already burned 7.8 million hectares and could continue for weeks, federal government officials said Monday.