Mexico has reached an agreement to settle a long-standing water debt with the United States, despite opposition and ongoing protests from farmers in the northern state of Chihuahua. Mexico has been diverting water to the U.S. from the La Boquilla Dam, which farmers say has left them unable to irrigate their crops amid a searing drought. Under the terms of a 1944 treaty, Mexico owes the U.S. nearly a half-billion cubic meters of water.