MEXICO CITY, Dec. 11 (UPI) -- As Mexico City continues to pull water from the aquifer below, its ground is sinking. The process is called subsidence. Now, the city's subsidence can be visualized from the perspective of low Earth orbit.
The European Space Agency has created an ariel composite image -- compiled using satellite imagery collected between October 3 and December 2 -- showing the city's rate of subsidence. Some areas of the city are sinking as much as one inch per month.