Science Speaks - Blog by ISAAA

Riding the Climate Rollercoaster: Extreme Weather Threatens Global Food Security

By Clement Dionglay
September 10, 2025

The future of the world’s food supply is facing a new and unsettling threat—not just declining average yields, but hotter and drier conditions creating a new and dangerous reality for global food production: extreme volatility. A new study, published in an open-access paper in the journal Science Advances, reveals that climate change is causing wild year-to-year swings in crop harvests, a phenomenon that researchers are calling the “new normal.”

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