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

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

Canadian wildfire smoke continues to cause potentially dangerous air quality across parts of the U.S. on Friday.

Smoke from Canadian wildfires has also been drifting into parts of the United States and as far as Europe. The U.S.

In the upper Midwest of the United States, Michigan, Wisconsin and Minnesota have issued air quality warnings as smoke from ...

A handful of heroic stars still shine through the night despite the light-choking conditions brought on by Canadian wildfires ...