
Trump threatened tariffs over smoke from roughly 950 Canadian wildfires, drawing a rebuke from Ontario's premier and widening his use of trade pressure into environmental disruption.
President Donald Trump threatened to impose higher tariffs on Canadian imports over wildfire smoke drifting into the United States, arguing that Canada's "willful negligence" in forest management has caused billions of dollars in economic damage. The comments came as roughly 950 wildfires burned across Canada, sending smoke into the Midwest, the Northeast, and major U.S. cities including New York and Chicago, where health alerts were issued. Trump said he planned to discuss the issue with Prime Minister Mark Carney, while Ontario's premier called the remarks unacceptable. The threat pushes Trump's tariff strategy beyond conventional trade disputes by treating cross-border environmental harm from a natural disaster as a potential basis for trade retaliation, with the planned Trump-Carney call now the next key development to watch.