An international comparison analysis of CO 2 emissions in the construction industry
An international comparison analysis of CO 2 emissions in the construction industry
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DOI：
10.1002/sd.2172
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发表时间：
2021-02
影响因子：
12.5
通讯作者：
Jindao Chen;Yuhong Wang;Qian Shi;Xu Peng;Juhua Zheng
中科院分区：
文献类型：
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作者：
Jindao Chen;Yuhong Wang;Qian Shi;Xu Peng;Juhua Zheng
全球变暖是人类面临的一个日益严重的问题。建筑业是全球二氧化碳排放量最大的行业之一，在应对全球气候变暖和实现可持续发展方面发挥着重要作用。采用多区域投入产出模型和结构分解分析模型，对2009年全球建筑业CO2排放量进行比较，并分析区域间建筑业排放强度差异的驱动因素。结果表明，中国、印度、美国、俄罗斯和日本是建筑业CO2排放量最大的五个国家。上述五个地区，尤其是中国和俄罗斯的建筑排放强度远高于强度最小的英国。研究结果还表明，生产结构效应是扩大中国与英国之间、印度与英国之间、俄罗斯与英国之间以及日本与英国之间贸易强度差异的最大驱动力，分别占贸易强度差异的93.1%、96.6%、65.6%和85.3%。能源强度效应主导了美国和英国之间的排放强度差异，占差异的101.6%。除生产结构对日英差距的影响外，对上述影响贡献最大的前三位是国内产业。该研究有助于政策制定者更好地了解世界各地建筑业CO2排放的差异，从而制定有效的减排政策。
Global warming is an increasingly serious issue faced by human beings. As one of the largest contributors to global CO2emissions, the construction industry plays a significant role in combating global warming and achieving sustainable development. This study aimed to compare the CO2emissions in the construction industry around the world and analyze the drivers of the differences in construction emission intensities between regions in 2009 using the multiregional input–output model and structural decomposition analysis model, respectively. The results show that China, India, the USA, Russia, and Japan were the largest five construction CO2emitters. The above five regions, especially China and Russia, had much greater construction emission intensities than the UK, which had the smallest intensity. The findings also demonstrate that the production structure effect was the largest driver enlarging the intensity differences between China and the UK, between India and the UK, between Russia and the UK, and between Japan and the UK, contributing 93.1%, 96.6%, 65.6%, and 85.3% of the differences, respectively. The energy intensity effect dominated the emission intensity difference between the USA and the UK, representing 101.6% of the difference. The top three contributors to the above effects were domestic industries except the production structure effect on the difference between Japan and the UK. This study can help policymakers better understand the disparities of CO2emissions in the construction industry around the world and thus formulate effective policies to mitigate the emissions.