A wave of new research using decades of NASA satellite data has revealed that Earth is losing its freshwater reserves at an unprecedented rate. The combined effects of climate change, overpumping of groundwater, and worsening droughts are rapidly depleting underground aquifers and surface water supplies. This loss is not only threatening drinking water and food security for billions but is also now a major driver of rising sea levels, surpassing even melting glaciers in impact. Scientists have identified four 'mega-drying' regions, all in the Northern Hemisphere, where water scarcity is becoming especially acute. Experts warn that without urgent action, the world faces a future of severe water shortages and escalating global risks.
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