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

Smoke from Canadian wildfires worsened air quality in the eastern U.S. on Wednesday as several Midwestern states battled ...

Air quality alerts and advisories have been issued in multiple states as Canadian wildfire smoke continues to spread.

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

More geomagnetic storm conditions are forecast for later in the week, pulling the aurora borealis farther south, though some ...