Water-resources officials on both sides of the U.S.-Mexican border have agreed to study construction of a 175-mile aqueduct that would carry water from the Colorado River to the fast-growing San Diego and Tijuana areas. The project—estimated to cost $2 billion—would help satisfy the increasing demand for water in a semi-arid region that has been plagued with water shortages, and water disputes, for several centuries. Even with the aqueduct, the amount of Colorado River water going from the U.S. to Mexico would not change. That is set by an international treaty at 1.5 million acre-feet per year. More than three-quarters of that water goes to farmers in the Mexicali Valley. The remainder goes to the cities of... [Log in to read more]