Impact of digital economy on co-benefits of air pollution reduction and carbon reduction: Evidence from Chinese cities

IF 6 2区 工程技术 Q1 ENVIRONMENTAL SCIENCES Urban Climate Pub Date : 2024-11-01 DOI:10.1016/j.uclim.2024.102189
Lixiang Guo , Shujing Yue
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Abstract

Pursuing co-benefits of air pollution reduction and carbon reduction (co-benefits) is an inevitable choice for the green development of China, with the digital economy (DE) presenting a viable novel opportunity. This study, based on data from 284 prefecture-level cities in China spanning from 2011 to 2021, examines the impact and full chain mechanisms of the DE on co-benefits. The results indicate that both the DE and co-benefits show an increasing trend. A distinct ‘east-high, west-low’ gradient distribution is observed. The DE significantly enhances co-benefits, with a 0.41 % increase in co-benefits resulting from a 1 % increase in the DE. Heterogeneity analysis reveals that the DE has a more pronounced impact on the carbon reduction effect. For cities located southeast of the Hu-Huanyong Line, urban agglomerations with high levels of integration, and non-resource-based cities, the promoting influence of the DE on co-benefits is stronger. Mechanism analysis indicates that the DE comprehensively enhances co-benefits by reducing energy intensity at the source, increasing public environmental appeal throughout the process, and improving air pollution and carbon emission efficiency through end treatment. Our research offers empirical support and decision-making references for enhancing co-benefits by leveraging the advantages of the DE.
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数字经济对空气污染减排和碳减排共同效益的影响:来自中国城市的证据
追求大气污染减排和碳减排的共同效益(共同效益)是中国绿色发展的必然选择,而数字经济(DE)则是一个可行的新机遇。本研究基于 2011 年至 2021 年中国 284 个地级市的数据,探讨了数字经济对共同效益的影响和全链条机制。研究结果表明,可持续发展指数和共同效益均呈上升趋势。呈现出明显的 "东高西低 "梯度分布。免税额明显增加了共同效益,免税额每增加 1%,共同效益增加 0.41%。异质性分析表明,DE 对碳减排效果的影响更为明显。对于位于沪汉蓉线东南侧的城市、一体化程度较高的城市群以及非资源型城市,DE 对共同效益的促进作用更强。机理分析表明,可持续发展模式通过从源头降低能源强度、全过程提高公众环境诉求、终端处理提高空气污染和碳排放效率,全面提升共同效益。我们的研究为利用可持续发展机制的优势提高共同效益提供了经验支持和决策参考。
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来源期刊
Urban Climate
Urban Climate Social Sciences-Urban Studies
CiteScore
9.70
自引率
9.40%
发文量
286
期刊介绍: Urban Climate serves the scientific and decision making communities with the publication of research on theory, science and applications relevant to understanding urban climatic conditions and change in relation to their geography and to demographic, socioeconomic, institutional, technological and environmental dynamics and global change. Targeted towards both disciplinary and interdisciplinary audiences, this journal publishes original research papers, comprehensive review articles, book reviews, and short communications on topics including, but not limited to, the following: Urban meteorology and climate[...] Urban environmental pollution[...] Adaptation to global change[...] Urban economic and social issues[...] Research Approaches[...]
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