CANADA VIBES NEWSROOM · ÉDITION DU SOIR | EVENING EDITION
July 19, 2026 · Evening Edition, Eastern Time

The U.S. president says the cost of air pollution from Canadian wildfires will be added to tariffs already imposed on Ottawa, a move whose legal footing is disputed.

Donald Trump said Friday on Truth Social that Canada will have to bear an additional tariff cost because of the smoke that has blanketed several North American cities for weeks. He blamed the pollution on Canadian officials for what he called poor management of forests and brush.

“The cost of this pollution must of necessity be added to the TARIFFS Canada is currently paying,” Trump wrote, accusing Canadian officials of “not properly maintaining their Forests, and Brush.” The White House has not specified a timeline or amount for the proposed surcharge.

Most Canadian imports to the United States currently face a 10% tariff, with the exception of goods covered under the Canada-United States-Mexico Agreement (CUSMA). Canadian-made automobiles, steel and aluminum are taxed at 25%.

The legal basis for such a move remains uncertain. The U.S. Supreme Court has already struck down the president’s ability to freely raise or lower country-specific tariffs under a 1977 emergency economic powers law. Trump is instead relying on sector-specific authorities that allow him to target individual products following investigations into national security concerns or unfair trade practices.

The threat comes as nearly 850 wildfires were active across Canada by mid-July, more than 180 of them in Ontario. Smoke gave Toronto the worst air quality of any major city in the world on July 15, sending roughly three dozen patients to the emergency departments at Toronto General and Toronto Western hospitals with respiratory symptoms.

What to watch

• Ottawa’s official response in the coming days.
• What legal form a surcharge might take (sector-specific investigation vs. a broader order).
• How wildfire activity and air quality evolve across the northeastern continent.

Sources

• The Washington Post
• Al Jazeera
• CNBC
• CNN