Cook County is under a heat watch through Thursday evening. Temperatures could feel like 105-110 degrees Wednesday.

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Canadian wildfire smoke lingers in Michigan. Officials issued an air quality advisory in southeast Michigan for July 15.

The Port of Oakland joins the BWBS initiative to protect whales and reduce air pollution by slowing ship speeds.

In 2023 and 2024, the hottest years on record, more than 78 million acres of forests burned around the globe. The fires sent ...