Global Drought Extremes Intensify Over 600 Years
Global Drought Extremes Intensify Over 600 Years
US · Published Oct 29, 2026
• Recent research published in AGU Advances highlights the intensification of extreme droughts globally over the past 600 years.
• Using a combination of climate simulations and modern reanalysis data, researchers analyzed the annual maximum potential cumulative water deficit (PCWD) to measure drought magnitude and timing.

Impact & Risks

The intensification of extreme droughts globally presents significant risks to agriculture, water resources, and ecosystems. Regions experiencing unprecedented 30-year PCWD values are likely to face severe water shortages, crop failures, and heightened vulnerability to wildfires. These changes could exacerbate food insecurity and economic instability, particularly in areas already prone to drought. The study also highlights the increasing likelihood of damaging impacts on human health and biodiversity as droughts reach unprecedented magnitudes.

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