Smoke from raging wildfires in Canada is worsening air quality in some U.S. states. While not on the same scale as the spring and summer of 2023, when over 800 Canadian wildfires burned more than 40 ...

Real-time tools, visuals, and other resources to quantify the role of climate change in weather events. Alerts We issues alerts in many instances when the Climate Shift Index identifies a notable ...

Smoke from Canadian wildfires blanketed much of the United States in August, with the Midwest and Northeast facing the heaviest and most frequent exposure. This month, the 2025 wildfire season became ...