One of the world's biggest cities, Mexico City, with a population of nearly 22 million people, is facing a looming water crisis. The city is at risk of running out of water by the end of June due to a combination of severe drought, aging infrastructure, and increased demand.
Mexico City sits on top of an ancient high-altitude lake bed, with an aquifer that supplies 60% of its water. However, over-pumping of the aquifer has led to the city sinking at a rate of about a foot and a half per year. The remaining 40% of the city's water is transported through leaky pipes, resulting in significant water loss.