The Earth holds approximately 20 million cubic kilometres of groundwater, roughly equal to the amount of saline water below the surface. But not all of it is usable: some lies too deep to extract, while other portions are already being tapped faster than they can recharge. Groundwater supplies half the world’s drinking water and irrigates a third of its crops, yet it is disappearing fast. How much can we still use before it is gone?
Find out more
https://erc.europa.eu/projects-statistics/science-stories/will-we-run-out-groundwater
