You wanna re-open NAFTA?

I got you NAFTA right here.

Foreign Policy In Focus | The Global Water Crisis and the Coming Battle for the Right to Water

While not likely to lead to armed conflict, stresses are growing along the U.S.-Canadian border over shared boundary waters. In particular, concerns are growing over the future of the Great Lakes, whose waters are becoming increasingly polluted and whose water tables are being steadily drawn down by the huge buildup of population and industry around the basin. A joint commission set up to oversee these waters was recently bypassed by the governors of the American states bordering the Great Lakes, who passed an amendment to the treaty governing the lakes that allows for water diversions to new communities off the basin on the American side. Canadian protests fell on deaf ears in Washington. In 2006, the U.S. government announced plans to have the U.S. coast guard patrol the Great Lakes using machine guns mounted on their vessels and revealed that it had created thirty-four permanent live-fire training zones along the Great Lakes from where it had already conducted a number of automatic weapons drills due to fierce opposition, firing three thousand lead bullets each time into the lakes. The Bush administration has temporarily called off these drills but is clearly asserting U.S. authority over what has in the past been considered joint waters.
Similar trouble is brewing on the U.S.-Mexican border, where a private group of U.S.–based water rights holders is using the North American Free Trade Agreement to challenge the long-term practice by Mexican farmers to divert water from the Rio Grande before it reaches the United States.

Did I mention oil? We got your oil right here.