Trump Threatens Tariffs Over Canadian Wildfire Smoke

President Donald Trump claimed Canada should be held financially responsible for the unhealthy U.S. air caused by Canadian wildfires, floated adding the costs to tariffs Canada pays, and said he would call Prime Minister Mark Carney to discuss. He framed the issue as willful negligence tied to forest management and climate policy tensions as air-quality alerts persist in major cities, amid broader disputes over U.S.-Canada relations and the future of the USMCA.