Mexico: Government must control population growth to protect water resources
March 15th 2012
Mexico’s government must control population growth in the Mexico valley area in order to protect the region’s water resources, national water authority Conagua’s coordinator of special projects for the area, José Miguel Guevara, told BNamericas.
“If the government behaves rationally and controls population within the Mexico valley, we will maintain the same level of water availability as we have now,” Guevara said.
The availability of water in Mexico is decreasing each year. In 2010, annual water availability per person was equivalent to 4,222m3/y. By 2020, this is expected to fall to 3,957m3/y. The decrease in availability is partly due to overuse of the country’s underground water sources, or aquifers, a problem is particularly pressing in the Mexico valley, home to more than 22mn people.
“To have a population of 22 million people at this altitude is irrational and it creates problems with water supply and treatment,” said Guevara.
Population growth within Mexico City has slowed significantly; however, “if housing developments continue to be established in Edomex [state], particularly to the north, the availability of water will continue to decrease,” the official said.
The creation of development centers in other parts of the country, particularly in the north where population density is low, would resolve the problem of water availability, according to Guevara, who said wider options would mean fewer people migrating to the capital.
“We trust that the authorities will not allow further irrational development that will bring resources in the valley of Mexico to breaking point,” Guevara added.
Source: Water World
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