国家内部的不平等以及制定公正的全球气候政策
Marie Young-Brun1,2,3, Francis Dennig4, Frank Errickson5
1Centre d'Économie de la Sorbonne, University Paris 1 Panthéon Sorbonne and Centre National de la Recherche Scientifique, Paris 75013, France.
概括
气候政策可以减少不平等,提高全球福利. 实施碳税与再分配,特别是全球人均转移,为最贫穷的家庭和弱势国家提供了显著的收益.
科学领域:
- 环境经济学环境经济学
- 气候变化的经济学
- 综合评估建模综合评估建模
背景情况:
- 气候政策的设计往往忽视了国家内部的不平等.
- 现有的综合评估模型 (IAM) 缺乏地方分布考虑.
- 气候变化对全球低收入人口产生了不成比例的影响.
研究的目的:
- 制定一个包含地方收入,缓解成本和气候损害的全球IAM.
- 评估气候政策方案,平衡减排和公平.
- 评估碳税收入在解决分配效应方面的作用.
主要方法:
- 开发一种全新的全球综合评估模型 (IAM).
- 建模国家经济与次国家收入分布.
- 评估各种气候政策情景 (例如碳税,再分配,损失和损害).
主要成果:
- 碳税与再分配增强全球福利,减少不平等.
- 统一的全球碳税与人均转移带来了巨大的收益.
- 损失和损害机制显著有利于使用温和碳收入的脆弱国家.
结论:
- 气候政策可以通过有效的收入回收来实现环境和社会目标.
- 全球气候政策在有限的国际再分配下是可行的.
- 有针对性的再分配,包括国家一级的再分配,有利于最贫穷的家庭.
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