President Donald Trump has blamed Canada for the wildfire smoke drifting across large parts of the United States and said the financial cost of dealing with the pollution should be added to existing tariffs on Canadian goods.
The comments came as thick smoke from hundreds of wildfires in Canada spread across parts of the Midwest and Northeast. Air quality warnings were issued in several areas, with health officials advising many residents to stay indoors and limit outdoor activities.
In a post on Truth Social, Trump said he would speak with Canadian Prime Minister Mark Carney about the situation. He described the smoke crossing the border as unacceptable and accused Canada of failing to properly manage its forests.
Trump argued that the pollution has become a yearly problem that costs the United States billions of dollars. He said those costs should be reflected in the tariffs already imposed on Canadian imports.
The president claimed Canada should be held responsible for the smoke affecting American communities. His remarks add another point of tension to an already difficult relationship between the two neighboring countries.
The White House has not released additional details about how such costs could be calculated or whether new tariff measures are being formally considered.
Canada responded by highlighting its ongoing investments in wildfire prevention and forest management. Emergency Management and Community Resilience Minister Eleanor Olszewski said the federal government has invested about C$12 billion in forest sustainability and wildfire prevention since 2020.
She said Canada continues to face increasingly hot and dry conditions that have made wildfires more frequent and more difficult to control. Olszewski also emphasized the long history of cooperation between Canadian and American firefighters during wildfire emergencies.
According to the minister, protecting Canadian communities remains the government’s highest priority as emergency crews continue responding to active fires across the country.
Climate researchers have linked the growing number of large wildfires to rising global temperatures. Experts say warmer weather creates drier forests, allowing fires to spread more quickly and burn over larger areas.
Mike Flannigan, a professor specializing in wildland fire research, said climate change is contributing to more extreme weather conditions and increasing wildfire activity across Canada.
Many of this year’s largest fires are burning in northwestern Ontario, where remote communities have faced major evacuation efforts. Officials said more than 650,000 acres have burned in Ontario so far this year, exceeding the area burned during the same period last year.
Several communities have been forced to leave their homes as fires continue to spread. Members of the Namaygoosisagagun First Nation, also known as Collins First Nation, evacuated by boat after wildfires destroyed much of their community.
Local officials said many residents lost homes and other important buildings during the fire, leaving families facing a difficult recovery.
The nearby city of Thunder Bay has become a major evacuation center for people displaced by the fires. Local authorities said shelters have reached full capacity as more evacuees continue arriving from affected communities.
Ontario Premier Doug Ford announced plans to strengthen the province’s wildfire response by purchasing 11 new aircraft designed to support firefighting operations. He also defended Ontario’s emergency response after criticism from some American political leaders.
Wildfires have also affected the United States this year. According to the National Interagency Fire Center, about 3.7 million acres have burned across the country in 2026, compared with a ten-year average of 2.7 million acres during the same period.
Trump’s latest comments come as he and Prime Minister Carney are expected to meet during the FIFA World Cup final in New Jersey. The wildfire smoke issue is likely to add another challenge to discussions between the two leaders as both countries continue responding to one of the region’s most active wildfire seasons in recent years.
