An air quality advisory for Long Island is the result of smoke from Canada wildfires, New York State officials say.

Smoke traveling from wildfires in Canada, North Dakota and Minnesota triggered an air quality warning in northern Wisconsin.

Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

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

Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

An air quality advisory is in effect until 12 a.m., Saturday, June 7, as Michigan continues to see effects of Canadian ...

Wind pushed more smoke from Alberta and B.C.’s wildfires to Calgary Wednesday, leading to an air quality warning for the city ...

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

The raging fires on Thursday are also expected to degrade air quality in parts of the Great Plains and Midwest. In New York, ...