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

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

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

An online tool maps measurements and enables non-experts to understand earthquakes, subsidence, landslides, and other types ...