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Story summary
- Researchers in Spain created the Climate-Driven Agricultural Decline Index to flag food-system risk.
- The index identifies the largest projected losses in tropical zones such as Nigeria, Sudan, Argentina and Australia.
- Northern Africa also appears severely impacted, according to Hannes Mueller of the Barcelona School.
- Within 25 years, nearly half of humanity could live where farms produce less food.
- An emerging El Niño could worsen food shortages for millions in 2027.
