Sucking up that groundwaterhas another side effect. It compresses the soil. Mexico City...

[narrator] Sucking up that groundwater
has another side effect. It compresses the soil. Mexico City is literally sinking. In some places,
as much as nine inches a year. NASA satellite data shows aquifers
in northern India decreasing by 29 trillion gallons
in just a decade. There are simply more people on Earth
consuming more water. This century, water consumption
has increased sevenfold. And the rain and snow that we count on
to water crops and refill lakes and rivers is getting less reliable. [Otto] Climate change is making
available water much more erratic