 In parallel, the government of the Federal District launched a Green Plan which includes water conservation as an important element.Investments envisaged under both plans include an increase in wastewater treatment, the import of groundwater from irrigated areas North of the city where the groundwater table increased due to irrigation with wastewater, the construction of a major new storm water drainage tunnel, increased water imports from an expansion of the energy-intensive Cutzamala system that pumps water up over more than 1000 meters, and the reduction of non-revenue water from 36% to 25%.The climate of the Valley of Mexico ranges from a semi-arid belt in the north to a tropical one in the south.