Analysis of Energy-Related-CO 2 -Emission Decoupling from Economic Expansion and CO 2 Drivers: The Tianjin Experience in China

Fengmei Yang and Qiuli Lv ()
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Fengmei Yang: Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
Qiuli Lv: Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China

Sustainability, 2024, vol. 16, issue 22, 1-18

Abstract: Cities are key areas for carbon control and reduction. The study of the decoupling between CO 2 emissions and gross domestic product (GDP) and the drivers of CO 2 emissions in cities facilitates the reduction of CO 2 emissions to safeguard the development of the economy. This paper first calculates the CO 2 emissions in Tianjin, China, from 2005 to 2022, then uses the Tapio decoupling index to quantify the decoupling status, and, finally, explores the energy-CO 2 -emission drivers through the Logarithmic Mean Divisia Index (LMDI) model. The findings indicate that (1) the decrease in CO 2 emissions from industrial products and transport is the main reason for the decline. (2) During the period under investigation, the predominant condition observed was a state of weak decoupling. (3) Given the economic-output effect is the primary and substantial driver of energy CO 2 emissions, it is essential to harmonize the interplay between economic-development approach and CO 2 emissions to foster sustainable development in Tianjin. The industrial structure plays the most critical role in hindering the reduction of CO 2 emissions; therefore, optimizing industrial structure can help achieve carbon reduction and control targets. These findings enrich the study of CO 2 emission factors and can also interest urban policymakers.

Keywords: CO 2 emissions; Tapio decoupling; driver; LMDI; Tianjin (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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