MPR News guest host Kelly Gordon talks with a forest ecologist about what's behind the fires burning in and near the Boundary Waters Canoe Area Wilderness, why they're so difficult to contain and what we can do to reduce wildfire risk.

• 
  
  Listen Poor air quality: What causes it and how to protect your health
  
  

Guest:

• Lee Frelich is the director of the University of Minnesota's Center for Forest Ecology.

Subscribe to the MPR News with Angela Davis podcast on: Apple Podcasts, Spotify or RSS.

Use the audio player above to listen to the full conversation.