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.

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

This page is the news from the Canada wildfires for Wednesday, June 7. For the latest and updated information on the wildfires, smoke and air quality across the US, visit our live updates file for ...

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

Smoke from Canada's wildfires is again drifting across large swaths of the United States, bringing air pollution and concerning air quality. Follow live updates.

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

Massive wildfires burning out of control in western and central Canada are forcing thousands to flee. The blazes are also sending hazardous smoke toward major cities in the United States.

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 image was captured by a NASA satellite camera located a million miles from the Earth's surface, around four times farther than the orbit of the moon.

Canada has a wildfire problem — research shows its wildfires are growing in intensity and area burned.Last year, it reached nightmarish proportions — and became America's problem, too. Canada ...

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