# Scientists condemn Trump’s accusation that Canada is poisoning US air

Scientists have criticized former President Donald Trump for claiming that Canada is "poisoning" US air, calling it a baseless and politically motivated "blame game." The accusation, made during a recent event, draws attention to ongoing cross-border environmental tensions but lacks scientific evidence. This matters as it could harm US-Canada relations and distract from real environmental issues.

**Importance:** 3/5

## Sources

### World
- [The Guardian World](https://www.theguardian.com/us-news/2026/jul/24/trump-canada-wildfires-smoke-scientists) — Fri, 24 Jul 2026 10:00:10 GMT