Climate Change Migration from Mexico

From the New York Times today by Michael Kimmelman - A Parched and Sinking Capital: Mexico City's Water Crisis Pushes It Toward the Brink - -

"One study predicts that 10 percent of Mexicans ages 15 to 65 could eventually try to emigrate north as a result of rising temperatures, drought and floods, potentially scattering millions of people and heightening already extreme political tensions over immigration."