Mexico City, a scant mile and a half above sea level, is sinking. It’s a turn of events that shouldn’t surprise anyone with a rudimentary grasp of history. Established by the Aztecs in 1325, the city formerly known as Tenochtitlán occupies what was once a plexus of interconnected lakes that were first drained by the Spaniards, then paved over with concrete and steel by modern engineers. As a result, Mexico City has to dig deep—literally—to obtain fresh water for its 21 million residents. But the drilling weakens the brittle clay beds that serve as the city’s foundation, according to the New York Times, hastening the collapse even further.

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For Mexico City, climate change isn’t a game of partisan ping-pong. Per the Times: More heat and drought mean more evaporation and yet more demand for water, adding pressure to tap distant reservoirs at staggering costs or further drain underground aquifers and hasten the city’s collapse.

In the immense neighborhood of Iztapalapa — where nearly two million people live, many of them unable to count on water from their taps — a teenager was swallowed up where a crack in the brittle ground split open a street. Sidewalks resemble broken china, and 15 elementary schools have crumbled or caved in.

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Rising temperatures and the increased incidence of droughts and floods could send millions of Mexicans fleeing north and “heightening already extreme political tensions over immigration.”

At the same time, Mexico City is facing a water crisis that prevents nearly 20 percent of its residents from getting water from their faucets each day. People have had to resort to hiring trucks to deliver drinking water, sometimes at prices 10 times higher than what richer neighborhoods with more reliable plumbing have to pay.

“Climate change is expected to have two effects,” Ramón Aguirre Díaz, director of the Water System of Mexico City, told the Times. “We expect heavier, more intense rains, which means more floods, but also more and longer droughts.” If rain stops filling the reservoirs, “there is no way we can provide enough trucks of water to deal with that scenario,” he added.

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Mexico City could still rally some long-term solutions, but like most places, the city is roiled by political infighting. “There has to be a consensus—of scientists, politicians, engineers and society—when it comes to pollution, water, climate,” said Claudia Sheinbaum, a former environment minister. “We have the resources, but lack the political will.”

Via New York Times

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