Global groundwater use outpaces supply

Measure reveals unsustainable use of world's aquifers

A handful of thirsty countries are guzzling their groundwater reserves much faster than those resources can be renewed.

GIANT FOOTPRINTS Overuse of just a few global aquifers (red, yellow, orange) is straining the world’s groundwater supply. The groundwater “footprints” of these aquifers (below, in gray) represents the theoretical area that would be needed to sustain current demand.