BBC - Future - How a city that floods is running out of water
▻http://www.bbc.com/future/gallery/20180510-how-a-city-that-floods-is-running-out-of-water
One of the world’s largest cities, Mexico City is home to about 21 million people – rising to 27 million if you include the surrounding areas. About 20% of Mexico’s population lives there. By the year 2030, the authorities estimate that the population will grow to 30 million people.
Among other challenges, such a large population puts a costly strain on Mexico City’s water supplies. In fact, the parts of Mexico City’s infrastructure that supply water are crumbling. Its natural water reserves are also at risk; if trends continue, they are expected to dry out as soon as in 30 years. With so many people affected, this means one of the world’s largest water crises is in the making on the doorstep of the US.