通过结构路径分析,对中国和美国之间建筑业的二氧化碳排放联系进行比较分析
Yezhen Lai1, Yu Song2,3
1The Institute for Sustainable Development, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, 999078, China.
Scientific reports
|November 3, 2024
概括
这项研究结合了结构路径分析 (SPA) 和假设提取方法 (HEM) 来分析中国和美国建筑部门的二氧化碳 (CO2) 排放. 两国都在以生产为基础的二氧化碳排放方面处于领先地位,其中中国位居第一.
科学领域:
- 环境科学 环境科学
- 经济学 经济学 经济学
- 工业生态学 工业生态学
背景情况:
- 中国和美国的建筑行业是全球二氧化碳排放的主要贡献者.
- 了解二氧化碳排放的跨部门联系对于有效的气候政策至关重要.
- 现有的研究往往单独分析基于生产或消费的排放.
研究的目的:
- 整合结构路径分析 (SPA) 和假设提取方法 (HEM) 以进行对中国和美国建筑部门二氧化碳排放联系的新分析.
- 为了比较两国建筑行业的生产和消费 CO2 排放.
- 确定驱动与建筑活动相关的二氧化碳排放的关键部门.
主要方法:
- 结构路径分析 (SPA) 和假设提取方法 (HEM) 的联合应用.
- 对中国和美国建筑行业二氧化碳排放联系的分析.
- 基于生产和基于消费的排放的比较评估.
主要成果:
- 中国和美国的建筑业是全球最大的二氧化碳排放者.
- 中国建筑业的基于消费的二氧化碳排放量 (29.81%) 远远超过美国 (5.63%) 的排放量.
- 建筑业的发展推动了两国电力,天然气,蒸汽和空调供应部门的大量二氧化碳排放.
结论:
- 建筑业的碳足迹是显著的,无论从生产还是消费的角度分析.
- 鉴定中国和美国建筑业的不同排放途径,可以提供有针对性的减排策略.
- 调查结果为决策者提供了可操作的见解,帮助他们制定有效的二氧化碳减排战略,以减少建筑行业的二氧化碳排放.
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