the.com/aquifer
an underground ocean older than your ancestors, sipped dry in a single thirsty century
ancient waterSome holds rain that fell over 10,000 years ago
sinking groundOverpumping makes cities physically drop, like Mexico City
hidden vastnessStores more freshwater than all surface rivers and lakes
no refillFossil aquifers don't recharge on human timescales
global reachTwo billion people drink straight from them