US President Donald Trump on Friday threatened to increase tariffs on Canada, arguing that the economic cost of wildfire smoke drifting into the United States should be added to the tariffs currently imposed on Canadian goods. The remarks came as thick smoke from Canadian wildfires spread across parts of the US, triggering air quality warnings in several regions and raising concerns over the impact of prolonged exposure to pollution. The wildfire smoke, which travelled south from Canada and parts of northern Minnesota, affected large areas of the United States, with authorities issuing unhealthy air quality alerts.

The smoke has reduced visibility in some locations and raised health concerns, particularly for vulnerable groups such as children, older adults, and people with respiratory conditions. According to the Canadian Wildland Fire Information System, Canada was dealing with hundreds of active wildfires, with 937 fires reported to be burning across the country as of Saturday. A significant number of these fires were classified as out of control, highlighting the scale of the wildfire challenge facing Canadian authorities during the ongoing fire season.

In a post on his social media platform Truth Social, Trump accused Canada of failing to properly manage its forests and blamed what he described as inadequate forest maintenance for the recurring smoke problem affecting the US. He alleged that Canada had neglected measures such as forest management and debris removal, claiming that the situation had become a yearly occurrence and was causing significant financial losses for the United States. “This is Willful Negligence, and becoming a yearly occurrence, costing the United States Billions of Dollars,” Trump said in his post.

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He added that the “cost of this pollution must of necessity be added to the TARIFFS Canada is currently paying,” suggesting that additional trade measures could be considered in response to the wildfire smoke issue. Trump also said he would contact Canadian Prime Minister Mark Carney to discuss the situation and ask what steps Canada planned to take. The comments added a new dimension to ongoing trade tensions between the two neighbouring countries, with environmental concerns now becoming part of the broader economic and diplomatic discussions.

Canadian officials responded by highlighting the cooperation between the two nations in managing wildfire emergencies. Canada’s Emergency Management Minister Eleanor Olszewski said Canada and the United States remained in “constant contact” regarding wildfire response efforts and emphasised the long history of collaboration between both countries in dealing with natural disasters. Olszewski also pointed to Canada’s investments in wildfire prevention and forest sustainability initiatives. She said Canada had invested $12 billion since 2020 in measures aimed at improving forest management, strengthening fire prevention systems, and enhancing emergency response capabilities.

Wildfires have become increasingly severe in recent years across North America, with experts linking the growing intensity of fire seasons to factors including prolonged drought conditions, rising temperatures, and changing weather patterns. The smoke from these fires can travel hundreds or even thousands of kilometres, affecting air quality far beyond the areas where the fires originate. The latest dispute comes as Canada and the United States continue to balance cooperation on climate-related challenges with broader economic and political disagreements. While officials from both countries have maintained communication on wildfire response, Trump’s tariff threat signals a potential escalation in tensions over how the two governments address the growing impact of extreme weather events.

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