The summer of 2025 has brought some of the worst air quality ever recorded to large parts of the United States. Cities across ...

Five states are under a “red flag warning” due to hot, dry and unstable conditions. Wildfires in Canada are also affecting the air quality in U.S.

A map showing the wildfires nearest to Yellowknife, Canada, on August 18, 2023, with the one near Awry Lake predicted to reach the outskirts of the city by the weekend.