Sinking land may affect 635 million people worldwide by 2040: Study
The gradual sinking of land could affect 635 million people globally by 2040, according to new research funded by UNESCO. During the past century, land subsidence due to groundwater depletion occurred at 200 locations in 34 countries. Researchers said most of the 635 million inhabitants in subsistence-susceptible areas are located in Asia, with a total exposed GDP of $9.78 trillion.