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Under a longstanding treaty, the Colorado River irrigates 3 million acres of farmland and supplies water to 30 million people in the United States and Mexico. Between population growth and a decade long drought, the Colorado is under such stress that Western states – desperate to maintain water supplies – want to purify agricultural runoff currently diverted into Mexico. But as The World’s Lorne Matalon reports, Mexico covets that water, because it has given birth to a productive wetland.
Columns of moist air hover above still water in the Cienega de Santa Clara, mirroring the desert sky. The wetland is an oasis in dry northern Mexico, a haven for birds and fish, some endangered.
“The Cienega is the most important wetland in the Colorado River delta.”