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<p>Studies warning of the potential negative effects of climate mitigation on food security through the competing use of land for bioenergy and afforestation have overlooked the impact of reduced ozone and its potential enhancement of crop yields. Here we use six global agro-economic models to compare the impacts of climate change with climate mitigation policy and ozone reduction on agriculture. We find that ozone reduction could reduce the negative impact of a 1.5 °C-consistent climate change mitigation policy on global hunger by 15% in 2050. Sub-Saharan Africa and India, where hunger is most severe, account for 56% of this global reduction. Our findings indicate that the negative effects of climate mitigation on global hunger could be partially offset by the ozone reduction impact.</p>

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Ozone pollution reduction partially offsets the negative impact of climate change mitigation efforts on global hunger

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月16日

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  • Shujuan Xia,
  • Tomoko Hasegawa,
  • Thanapat Jansakoo,
  • Daniel Mason-D’Croz,
  • Kazuaki Tsuchiya,
  • Shinichiro Fujimori,
  • Maksym Chepeliev,
  • Marta Kozicka,
  • Abhijeet Mishra,
  • Willem-Jan van Zeist,
  • Xin Zhao,
  • Thijs de Lange,
  • Thais Diniz Oliveira,
  • Jonathan C. Doelman,
  • Matthew Gibson,
  • Petr Havlík,
  • Mario Herrero,
  • Ipsita Kumar,
  • Yuki Ochi,
  • Timothy B. Sulser,
  • Marina Sundiang,
  • Kiyoshi Takahashi,
  • Jun’ya Takakura,
  • Keith Wiebe

摘要

Studies warning of the potential negative effects of climate mitigation on food security through the competing use of land for bioenergy and afforestation have overlooked the impact of reduced ozone and its potential enhancement of crop yields. Here we use six global agro-economic models to compare the impacts of climate change with climate mitigation policy and ozone reduction on agriculture. We find that ozone reduction could reduce the negative impact of a 1.5 °C-consistent climate change mitigation policy on global hunger by 15% in 2050. Sub-Saharan Africa and India, where hunger is most severe, account for 56% of this global reduction. Our findings indicate that the negative effects of climate mitigation on global hunger could be partially offset by the ozone reduction impact.