Ziyuan Kexue (Jul 2024)
Quantitative evaluation of co-benefits of pollution reduction and carbon emission reduction and improvement path from the perspective of performance
Abstract
[Objective] The purpose of this study was to establish a quantitative evaluation method for the co-benefits of pollution reduction and carbon emission reduction from the perspective of performance, to provide methodological support for evaluating the co-benefits of pollution reduction and carbon emission reduction and exploring the improvement path of the co-benefits. [Methods] Based on the performance improvement thought of co-benefits “1+1>2”, a quantitative evaluation method for the co-benefits of pollution reduction and carbon emission reduction was constructed under the framework of data envelopment analysis (DEA). The method was used to evaluate the co-benefits of pollution reduction and carbon emission reduction in China from 2006 to 2021, and the basic paths for improving the co-benefits of pollution reduction and carbon emission reduction in China were compared based on scenario analysis. [Results] (1) The collaborative treatment of pollution reduction and carbon emission reduction could improve both air pollution emission performance and carbon dioxide emission performance in China, and the co-benefits of pollution reduction and carbon emission reduction in China from 2006 to 2021 had reached 22.35%. (2) The co-benefits of collaborative emission reduction were universal among different regions and provinces. From 2006 to 2021, the co-benefits of pollution reduction and carbon emission reduction in the eastern, central, western, and northeastern regions was 12.97%, 36.27%, 30.29%, and 37.77%, respectively. Among the 30 sample provincial units in China, 28 had co-benefits of pollution reduction and carbon emission reduction. (3) Scenario analysis showed that from 2015 to 2021, the co-benefits of China’s pollution reduction and carbon emission reduction under the scenario of energy conservation and efficient use and resource conservation and intensive use increased by 5.90% and 5.64% respectively compared with the benchmark model. Promoting energy conservation and efficient use and promoting the conservation and intensive use of various resources are the key paths to achieve the collaborative improvement of pollution reduction and carbon emission reduction. [Conclusion] Promoting the collaborative governance of pollution reduction and carbon emission reduction is of great significance for the overall realization of air quality improvement and carbon dioxide emission reduction. We recommend to promote the collaborative governance of pollution reduction and carbon emission reduction according to local conditions, strengthen the prevention and control of pollution and carbon emission reduction at the source through the saving and efficient use of energy, and promote the collaborative efficiency of pollution reduction and carbon emission reduction through resource conservation and intensive use.
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