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

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

Wildfires have been raging along the West Coast and in Canada for most of the spring and summer. For some U.S. residents, ...

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

As Canada’s wildfire smoke creeps down into the U.S., it’s also transforming. Chemical reactions between gases and sunlight create ozone, which further exacerbates lung conditions like asthma.

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

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

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

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.

Canada is on track to see the worst wildfire season since 2023, with millions of hectares of land scorched and thousands ...

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

More than 200 wildfires are blazing across Canada, forcing 27,000 people to evacuate and creating hazardous air quality all over the U.S.