Many, many problems have good practical solutions that are politically impossible to implement.
All due to some kind of game-theoretic "dilemma", like a coordination problem, collective action problem, prisoner's dilemma, principal-agent problem, tragedy of the commons.
What solution? The earth is constantly moving and churning. The article states the city is built on an aquifer.
Mexico City was built on top of a lake that was dried to facilitate the expansion of the city.
> What solution
The nobel prize winner hopefully figures that out
Mexico City’s water stress is complicated by the fact that it sits 2240 meters above sea level on a giant plateau surrounded by mountains, so the normal solution of pumping water from somewhere else is a lot more expensive.