A new global study has revealed the profound influence of the El Niño-Southern Oscillation (ENSO) on worldwide flood and drought patterns. Conducted by scientists at The University of Texas at Austin and published in AGU Advances, the research demonstrates how ENSO drives extreme fluctuations in total water storage across the globe. Using gravity measurements from NASA's GRACE and GRACE Follow-On satellites, the study provides critical insights into how ENSO synchronizes wet and dry conditions across continents, impacting water availability, food production, and international trade.