Northern states are depending on imported Canadian hydropower to clean up their grids. What happens now?
On Tuesday, President Donald Trump initiated a trade war with Canada and Mexico, America’s two largest trading partners. Following through on weeks of threats, he imposed 25 percent tariffs on imported goods from Mexico and Canada and a lower 10 percent tariff on imports of Canadian energy resources. (Update, Thursday, March 6: Trump has announced a one-month delay on the tariffs on most Mexican and some Canadian goods.)