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

Greenland is larger than any American state, but 80% of it is buried beneath an ice sheet. Almost 90% of the nearly 60,000 ...

The wildfire smoke has drifted down from Canada, where there are close 200 active wildfires. This timelapse shows the drifting smoke over a three day period (Credit: CIRA Satellite Library) ...