Continental Drying: A Threat to Our Common Future

Zhang, Fan, Christian Borja-Vega, Hrishikesh Arvind Chandanpurkar,

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Grounded in new evidence from satellite data, “Continental Drying: A Threat to Our Common Future” presents the first global assessment of freshwater reserves over the past two decades. The findings expose an alarming trend of “continental drying,” a persistent long-term decline in freshwater availability across vast landmasses. Not only are droughts and deluges becoming more unpredictable, but the total amount of freshwater available for use has also significantly declined. Continental drying, driven by global warming, worsening droughts, and unsustainable water and land use, is a silent but accelerating crisis—largely unknown to the public—that reshapes the global water narrative. Continental drying raises profound risks. This report reveals new empirical evidence showing how freshwater depletion leads to major job losses, reduced incomes, wildfires, and biodiversity threats. In the long term, the combined effects of drying and warming could push societies toward a tipping point where damage accelerates rapidly and adaptation becomes increasingly difficult.