The air quality warning for the Greater Toronto Area has been lifted after being in place over the long weekend, Environment ...

I RYU/VCG via Getty ImagesRed flag warnings remain in place for parts of Nevada, Utah, Colorado and Wyoming due to very dry conditions, low humidity and gusty winds and fires in these areas may ...

States across the U.S. are feeling the impact of the Canadian wildfires as air quality takes a hit from the smoke, according ...

The air quality in several U.S. states is taking a hit as smoke floats over the border from the Canadian wildfires. Here's ...

An air quality statement was issued for the region and much of southern Ontario because of drifting smoke from western Canada ...

Toronto will once again see diminished air quality on Tuesday as smoke from forest fires in other regions drift into the city ...

The air quality index on Tuesday across the Midwest and the Northeast ranged from "moderate" to "unhealthy" for sensitive adults. Some areas in northern Wisconsin, eastern Pennsylvania, northern ...

For the second straight day, the quality of the air in all of New Hampshire will be reduced thanks to smoke from wildfires ...

As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect ...

Crews working to beat back the sizeable forest fire burning its way into the Prince Albert National Park had to change ...

Smoke from hundreds of active wildfires in Canada has drifted southward, contributing to degraded air quality across the ...