- Trump: Holding Canada responsible for not properly maintaining their forests, cost of this pollution must be added to the tariffs Forex Factory
- Trump says US being ‘invaded by filthy air’ as he threatens Canada with tariffs over wildfires BBC
- Trump threatens new tariffs on Canada over wildfire smoke affecting US cities The Times of India
- Trump threatens Canada with steeper tariff costs over wildfire smoke Al Jazeera
- Republicans threaten Canada with sanctions over drifting wildfire smoke The Guardian