A Hybrid Framework for Direct CO 2 Emissions Quantification in China’s Construction Sector

Adedayo Johnson Ogungbile, Geoffrey Qiping Shen, Ibrahim Yahaya Wuni, Jin Xue and Jingke Hong
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Adedayo Johnson Ogungbile: Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong, China
Geoffrey Qiping Shen: Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong, China
Ibrahim Yahaya Wuni: Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong, China
Jin Xue: Department of Building and Real Estate, The Hong Kong Polytechnic University, Hong Kong, China
Jingke Hong: School of Construction Management and Real Estate, Chongqing University, Chongqing 400045, China

IJERPH, 2021, vol. 18, issue 22, 1-22

Abstract: Carbon emission quantifications in China are not consistent, with many standards and methods having been used over the years. This study identified the non-consideration of China-specific technology and databases as a factor limiting comprehensive quantification. The study aimed to comprehensively quantify regional direct CO 2 emission in the industry using a hybrid of economic and environmental data. We retrieved nineteen (19) sets of fossil fuel and electricity data from provincial energy yearbooks between 1997 and 2015 for the study. To generate regression models for each of the six regional construction industries in China, the study further integrated the results with three sets of econometric data: total annual construction output, cement, and steel product yearly consumption data. The study identified the North China region as the main source of direct CO 2 emission with over 30%, while Southeast China contributed the least. While there is a gradual shift to other energy sources, the study identified coal and crude oil to remain as the main energy sources in the industry. Cement and steel data exhibited a significant predictive relationship with CO 2 emissions in five regional construction industries. The study identified the need to have policies tailored to technological improvements to enhance renewable energy generation and usage in the industry. The models developed in this study could be used to generate initial quantifications of carbon emissions in construction industries with similar carbon-emitting characteristics for carbon tracking, and energy policies for decision making. However, the three economic indicators used in the study could be extended to generate more robust models in future research.

Keywords: direct CO 2 emissions; fossil fuel; energy consumption; regional construction industry; econometric analysis (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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