A wave of new research using decades of NASA satellite data has revealed that Earth's continents are losing freshwater at an unprecedented rate.
The main drivers are climate change, over-extraction of groundwater, and worsening droughts, which are causing rapid land drying and shrinking aquifers. This loss is so severe that drying land now contributes more to sea level rise than melting glaciers. Four massive 'mega-drying' regions have been identified, mostly in the Northern Hemisphere, threatening water security for billions.
Experts warn that if current trends continue, global water scarcity could trigger widespread food insecurity, economic instability, and even conflict.
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