- New York issues air quality alert days before World Cup final BBC
- Hundreds of Canada wildfires prompt US air quality alerts as smoke spreads south BBC
- Wildfire smoke will drive poor air quality through Saturday as new plumes arrive from Canada CNN
- Wildfires force thousands to evacuate as skies darken over US and Canadian cities Sky News
- Air quality plummets in 20 US states as smoke from Canadian wildfires spreads The Guardian
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