实现公平的碳责任:将与贸易相关的排放和碳汇纳入城市脱碳的过程中
Junliang Wu1,2, Yafei Wang1,2,3, Shuya Zhang1
1School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China.
Environmental science and ecotechnology
|February 24, 2025
概括
精确的碳减排责任 (CMR) 分配需要考虑供应链排放和森林碳汇. 这项研究制定了一个框架,显示了城市减缓配额的重大转变,有助于公平的气候政策.
科学领域:
- 环境科学 环境科学
- 气候政策 气候政策
- 城市可持续性 城市可持续性
背景情况:
- 城市是全球碳排放的主要驱动因素,需要有效和公平的气候政策.
- 精确的碳减排责任分配对于政策制定至关重要.
- 了解与贸易相关的碳泄漏和森林碳汇对CMR的影响至关重要,但人们对其了解甚少.
研究的目的:
- 制定一个综合框架,分配碳减排责任 (CMR),同时考虑碳泄漏和森林碳汇.
- 分析该框架对广东-香港-澳门大湾区CMR分配的影响.
- 为激励协调缓解努力和加强城市碳汇提供基础.
主要方法:
- 制定一个集成的CMR分配框架,包括碳泄漏和森林碳补偿.
- 该框架在2005年至2020年适用于广东-香港-澳门大湾区的城市.
- 模拟未来趋势和增强气候政策场景的影响.
主要成果:
- 纳入碳泄漏会显著改变减缓配额,在2005年至2020年期间,调整幅度从±10%到50%不等.
- 通过供应链重新分配外包排放,减轻生产城市的减排负担20-30%.
- 考虑碳汇可以使森林丰富的城市的碳预算增加高达10%;加强气候政策可以将减缓配额增长率降低40%.
结论:
- 拟议的CMR框架为公平的气候政策设计提供了一个强有力的方法.
- 纳入碳泄漏和碳汇对于准确和公平的减缓责任分配至关重要.
- 该框架支持协调缓解,供应链脱碳和城市碳汇增强.
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