Canada’s Class I freight network linking the Great Lakes, Prairies, and U.S. Midwest
Smoke from more than 800 active wildfires in Canada has blanketed parts of the US Midwest and Northeast and made air quality hazardous in cities including Chicago, Detroit and New York. Officials have issued health alerts, advised people to stay indoors, and warned that smoke will linger into the weekend before forecast rain helps disperse it.
The United States has imposed an import ban on a subset of Canadian goods, part of a broader tariff-driven confrontation. Canada retaliates with matching levies, keeping two-way trade worth about $880 billion annually. Economists say the impact will be modest, but tensions will persist.