Last Update: 04/05/2026 at 2:50 PM EST
Cleaner Air Offsets Hunger Risk
Coverage from Nature, EurekAlert!, and others
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03/16
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Executive Summary
Climate mitigation raises food prices and hunger risk, but ozone cuts from cleaner air offset part of the damage by 2050
- Six agro-economic models assessed climate mitigation, ozone change and food security through 2050
- The 1.5 C mitigation pathway raises food and agricultural prices versus the baseline
- Higher prices and land competition increase global hunger risk by about 56 million
- Lower ozone from mitigation improves crop yields and offsets about 8.4 million hunger cases
- The ozone benefit offsets about 15 percent of the mitigation-driven hunger increase
- Sub-Saharan Africa and India account for most of the offsetting effect
- Uncertainty remains around ozone modeling, AOT40 methods and model differences
Quick Facts
- What: Climate mitigation raises hunger risk while ozone cuts offset part
- Where: Global, with gains strongest in Sub-Saharan Africa and India
- Why: Carbon pricing and land competition lift prices but cleaner air helps crops
- Who: Six global agro-economic models and university researchers
- When: Through 2050 under 1.5 C and baseline scenarios
Featured Article
Researchers evaluate climate mitigation impacts on hunger risk and ozone benefits in 2050 on a global scale.
Additional Articles
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Researchers evaluate how climate mitigation and ozone reductions interact to affect global food security by 2050.
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Researchers project climate mitigation may raise global hunger risk by 2050 despite ozone driven yield gains.