State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is ...

Wildfires burning in the western US, including California, and Canada have caused evacuations and air quality alerts.

In the United States, there are 102 wildfires actively burning, according to the National Interagency Fire Center. A majority of those wildfires are in Alaska. Map of wildfires in US, Canada ...