The UN's World Meteorological Organization reported that global river flows hit 35-year lows in 2025, with over a third of river basins experiencing below-normal water levels. Terrestrial water storage has declined for a decade, glaciers lost 1,400 gigatonnes of water in just two years, and nearly two-thirds of monitored groundwater wells show abnormal conditions. This systemic depletion threatens long-term water security and increases drought/flood risks, particularly affecting cross-border water resources and regions like South Asia where erratic patterns are intensifying.