Smoke from Canadian wildfires blanketed much of the United States in August, with the Midwest and Northeast facing the heaviest and most frequent exposure. This month, the 2025 wildfire season became ...

Smoke from hundreds of wildfires in Canada has spread over 5,000 miles across the Atlantic over the last week — reaching as far as parts of Russia. Western Greenland and the Arctic Archipelago have ...

Surges of wildfire smoke are expected across central and eastern states through the end of the week as winds blow from Canada. Early Wednesday, air quality levels were unhealthy to very unhealthy ...

Dangerous air quality conditions prompted officials to issue health alerts across large parts of the Northeast, Mid-Atlantic, and Southern California on Tuesday. Authorities warned millions of ...