Decoupling of Carbon Emissions from Economic Growth: An Empirical Analysis Based on 264 Prefecture-Level Cities in China

Wenmei Kang, Benfan Liang, Keyu Xia, Fei Xue and Yu Li
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Wenmei Kang: University of Chinese Academy of Social Sciences, No. 11 Changyu Street, Fangshan District, Beijing 102488, China
Benfan Liang: Research Institute for Eco-Civilization, Chinese Academy of Social Sciences, 27 Wangfujing Street, Dongcheng District, Beijing 100710, China
Keyu Xia: University of Chinese Academy of Social Sciences, No. 11 Changyu Street, Fangshan District, Beijing 102488, China
Fei Xue: University of Chinese Academy of Social Sciences, No. 11 Changyu Street, Fangshan District, Beijing 102488, China
Yu Li: University of Chinese Academy of Social Sciences, No. 11 Changyu Street, Fangshan District, Beijing 102488, China

Chinese Journal of Urban and Environmental Studies (CJUES), 2021, vol. 09, issue 03, 1-14

Abstract: After setting the goal of peaking carbon emissions before 2030 and achieving carbon neutrality before 2060, it has become an irresistible trend for China to decouple carbon emissions from its economic growth. Since cities play a central role in reducing carbon emissions, the issues such as whether and when their carbon dioxide emissions can be decoupled from economic growth have become the focus of attention. Based on the carbon dioxide emissions of 264 prefecture-level cities in China from 2000 to 2017, this paper uses the Tapio decoupling index to measure the decoupling relationship between carbon emissions and economic growth of cities, analyzes the space–time evolution characteristics of carbon emissions and decoupling indexes by stages, and explores the relationship between carbon emissions and socio-economic development characteristics such as per capita GDP and industrial structure. The main conclusions drawn therefrom are as follows: (i) From 2000 to 2017, the city-wide carbon emissions rose from 2.484 billion tons in 2000 to 7.462 billion tons in 2017, registering a total increase of 200.40%. But the growth rate of carbon emissions within cities has been significantly reduced. (ii) As years passed by, the number of cities that achieved strong decoupling saw a significant increase, from zero in the 10th–11th Five-Year Plan period to 14 in the 12th Five-Year Plan period and the first two years of the 13th Five-Year Plan period, accounting for 5.3% of the total number of cities. (iii) There is an inverted U-shaped curve relationship between per capita carbon emissions and per capita GDP, which is consistent with the EKC curve hypothesis, but Chinese cities are still in the growth stage of the quadratic curve currently. The correlation between per capita CO2 emission and the proportion of the secondary industry was positive. The results of this study are expected to provide experience for the low-carbon development of cities in China and other developing countries, and provide references for the formulation and evaluation of policies and measures related to low-carbon economic development based on the decoupling model.

Keywords: Carbon emissions; decoupling index; space–time evolution; cities (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S2345748121500172

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