Public schools barred students from going outside, while sports organizations scrapped events because of unhealthy air.

More than 16,400 people have had to flee their homes but so far there ... south and this could lead to hazy conditions across New York City later today, the National Weather Service said.

Alberta's Indigenous nations face down apocalyptic wildfires and the Canadian government's "let-it-burn" climate policy.

Smoke from Canadian wildfires continue to shroud US cities in a noxious haze, forcing flight delays and cancellations to ...

The devastating fires have caused more than 20,000 people to flee their homes, and some 3.8 million hectares of land have ...

In Ottawa, Prime Minister Justin Trudeau said this has been “the worst wildfire season we’ve ever had right across the ...

Instability in the jet stream could potentially be responsible for seemingly unrelated weather in disparate parts of the ...

While headlines this week in the United States focused on historic levels of air pollution in major East Coast cities like New York and Philadelphia—which ... the Clean Air Act was passed in 1970—in ...

The fires in Quebec have forced more than 11,400 people to flee their homes ... by the smoke include Canada’s main population centers of Montreal in Quebec and Ottawa and Toronto in southern Ontario, ...

An air quality alert is in effect through Wednesday in New York City, the northern suburbs, Long Island and parts of northern New Jersey due to wildfires in Quebec, Canada, according to officials.

More than 16,400 people have had to flee their homes but so far there have been no injuries ... the fires is blowing south and this could lead to hazy conditions across New York City later today, the ...