- Dangerous wildfire smoke blankets large parts of Canada and the US BBC
- Wildfires force thousands to evacuate as skies darken over US and Canadian cities Sky News
- Yes, breathing wildfire smoke can harm your health – here’s what you can do to protect yourself The Conversation
- More Canadian wildfire smoke shrouds US midwest, mid-Atlantic and north-east The Guardian
- Maps: Tracking Air Quality and Smoke From Wildfires in Canada and the U.S. The New York Times
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