可再生能源政策如何减少温室气体排放:来自先进数据分析技术的见解
Xinyue Gao1, Yujie Ge2, Jiansheng Qu3
1School of Mathematics and Statistics, Lanzhou University, Lanzhou, 730000, PR China.
Journal of environmental management
|June 7, 2025
概括
可再生能源目标 (RET) 有效减少温室气体 (GHG) 排放,而可再生能源战略计划 (RESP) 却没有. 通过减少化石燃料的使用和促进可再生能源的整合,RETs的工作.
科学领域:
- 环境科学 环境科学
- 经济学 经济学 经济学
- 政策研究 政策研究
背景情况:
- 可再生能源政策 (REP) 对于减轻温室气体 (GHG) 排放至关重要,导致许多国家实施可再生能源战略计划 (RESP) 和可再生能源目标 (RET).
- 尽管进行了大量投资,但关于RESP和RET在减少温室气体排放方面的有效性的经验证据仍然有限.
- 本研究通过评估这些政策对减排的影响来解决研究缺口.
研究的目的:
- 实证地评估可再生能源战略计划 (RESP) 和可再生能源目标 (RET) 对温室气体 (GHG) 减排的影响.
- 研究 RESP 和 RET 影响排放的机制,包括化石燃料消耗,可再生能源份额和工业结构.
- 测试有关不同可再生能源政策工具有效性的有争议的假设.
主要方法:
- 利用了来自80个国家的综合数据,涵盖了1971-2020年的时间.
- 采用多期差异差异 (DiD) 方法.
- 应用双重机器学习 (DML) 模型来进行强大的因果推理.
主要成果:
- 这些发现驳斥了RESP显著减少温室气体排放的假设.
- 证实RETs在1%的水平上显著减少温室气体排放.
- 调解分析显示,RETs通过减少化石燃料消耗,增加可再生能源份额和促进工业升级来减少排放.
结论:
- RETs是实现温室气体减排的有效政策工具.
- 虽然RESP可能间接影响化石燃料的使用和工业结构,但它们对整体温室气体排放的直接影响不足.
- 政策框架应优先考虑设计和实施有效的RET,以实现气候目标和可持续发展目标.
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