Considering wildfires, and prevailing winds blowing from Canada, are expected to become more frequent, the impact on crops ...

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Wildfire smoke worsens air quality. Wildfire smoke has been fouling U.S. air quality for several days, starting in states bordering Canada, including the Dakotas, Minnesota and other ...

Hundreds of wildfires are burning across the Western states, Alaska and Canada as fire season perks up amid a sprawling heat ...

Of the active fires, 74 are in Canada’s westernmost province, British Columbia, which is above the U.S. states of Washington and Montana. The western province of Alberta has the second-highest ...

This allowed the fires to burn under hot, dry skies and the smoke from the fires to funnel into the eastern United States. "It can get stuck in this persistent pattern for a while," she said.

Some locations may end up as much as 20 or more degrees above average for several days, with 80s and 90s a good bet from the icy Hudson Bay through eastern Canada and the Northeast United States ...

With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke from these flames. ... carrying it into the United States.

Six Republican members of Congress – four of them from Minnesota – have called on Canada to impose 'better forest management.