Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching all the way to Europe.

P lenty of research shows that respiratory distress and heart attacks spike in the event of smoke exposure; acute impacts of ...

Wildfires are already burning in parts of Canada, and as they do, many communities are already facing the familiar thick haze as smoke drifts in.

Some leave on their own. But there are others who choose to stay, including many farmers who do not want to surrender their ...

Canada still has time to lead — not just in firefighting, but in foresight. To invest in our forests, respect our waters, ...

Dry conditions in Canada start a chain of events that exacerbates wildfires, injects plumes of smoke in the air and affects air quality in Milwaukee.

Health specialists were put on leave, and a report on how to protect 20 million workers from wildfire smoke has stalled ...

Smoke poured over the Canadian border into eastern Alaska this weekend, bringing poor air quality to communities from ...

Health researchers are studying respiratory impacts as climate change makes wildfires more frequent and intense across the ...

Firefighters across the Final Frontier are working to contain dozens of blazes that have forced evacuations and occasionally ...