Could ending the water treaty help Canada fight U.S. tariffs? - CBC News

The six-decade-old Boundary Waters Treaty between the U.S. and Canada governs the use of one of North America’s largest rivers, the Columbia, with provisions that provide for effective flood control, irrigation, and hydropower generation and sharing between the countries. As U.S. President Donald Trump threatens to impose punishing tariffs on Canadian products and electricity, calls to end the water treaty are getting louder.