增强的农业碳吸收器为农民和气候带来了好处
Stefan Frank1, Andrey Lessa Derci Augustynczik2, Petr Havlík2
1International Institute for Applied Systems Analysis, Laxenburg, Austria. frank@iiasa.ac.at.
Nature food
|September 23, 2024
概括
农业土地的碳捕获提供了相当大的气候缓解潜力,相当于到2050年的植树. 这一战略可以为生产者带来大量收入,并降低气候行动的总体成本.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 环境经济学环境经济学
背景情况:
- 农业用地上的碳封存是一个长期被忽视的领域,具有显著的气候变化缓解潜力.
- 全球南方拥有大量尚未开发的潜力.
研究的目的:
- 预测到2050年农业用地碳封存的累积减缓潜力.
- 评估经济影响,包括生产者的收入和整个经济的成本.
- 评估对实现土地使用部门净零排放和整体气候稳定的影响.
主要方法:
- 利用经济土地利用模型来预测缓解潜力和成本.
- 在各种碳定价情景下分析了农业生产者的潜在收入.
- 气候稳定场景与没有农业碳捕获选项的气候稳定场景的比较.
主要成果:
- 农业碳捕获可以提供可比于2050年植树的累积减缓潜力,达到160美元.
- 生产商可以获得高达3750亿美元的额外收入,以160美元的价格.
- 到2050年在土地利用部门实现净零排放是可行的,成本为80-120美元,减少整个经济的缓解成本,增加0.6%的国内生产总值.
结论:
- 农业土地碳封存为缓解气候变化提供了一个可行的,经济上有利的途径.
- 有效的机构和监测系统对于在全球范围内释放这种潜力至关重要,特别是在撒哈拉以南非洲.
- 将农业碳封存纳入气候战略可以提高缓解努力和经济成果.
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