The vast farmlands of Pakistan — a country with an economy based on agriculture — rely on one of the largest continuous irrigation systems in the world. Farmers were once able to depend solely on rivers and man-made canals fed by glaciers and rain. But as...

Study Maps Earth's Hidden Groundwater
An international group of hydrologists produced the first data-driven estimate of Earth's total supply of groundwater.

World's Largest Groundwater Basins in Distress
Human consumption is rapidly draining some of its largest groundwater basins, yet there’s little to no accurate data about how much water remains in them, according to two new studies led by UC Irvine that use data from NASA Gravity Recovery and Climate Experiment...