Air quality alerts are in effect in the Philadelphia area, fueled by smoke from wildfires that are burning thousands of miles ...

More than 700 wildfires are burning in Canada as of Tuesday evening. Donald Trump makes major announcement on political ...

Air quality alerts are in effect on Tuesday in 10 states as toxic smoke from hundreds of wildfires burning in Canada ...

Because of all of the smoke, the Pennsylvania Department of Environmental Protection has declared a Code Orange Air Quality ...

State and federal lawmakers are looking into what can be done to try and prevent more Canadian wildfires in the future.

U.S. Ambassador to Canada Pete Hoekstra said Tuesday that Canada’s recent wildfires offer a “stark reminder” of the countries ...

NBC News’ Liz Kreutz reports from Los Padres National Forest where the largest fire in California is burning out of control.

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 ...

At least 738 wildfires are currently burning in Canada, with at least 201 out of control, according to the Canadian ...

The remaining 10 states affected by medium to heavy smoke from the wildfires are Colorado, New York, New Jersey, Connecticut, Pennsylvania, Vermont, Massachusetts, Indiana, New Hampshire, and ...

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.