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  • Title: The spatial differences of the synergy between CO2 and air pollutant emissions in China's 296 cities.
    Author: Li L, Mi Y, Lei Y, Wu S, Li L, Hua E, Yang J.
    Journal: Sci Total Environ; 2022 Nov 10; 846():157323. PubMed ID: 35868396.
    Abstract:
    The emissions reduction of CO2 and air pollutants are the main task in China. The two have the same roots and they interact with each other. However, CO2 and air pollutants are quite different in space, so it is of great practical significance to explore the spatial differences of their synergy. As PM2.5 and O3 are more concerned at present, thus, this paper examined the decoupling of CO2, PM2.5 and O3 from GDP in China's 296 cities using the latest available data from 2015 to 2016. And the spatial differences of synergy among CO2, PM2.5 and O3 were quantitatively analyzed by using spatial autocorrelation analysis and geographically weighted regression model. The results showed that: (1) The cities achieving the three synergy emissions reduction were mainly in the southeast of China. (2) Only 26 cities had achieved the strong decoupling of CO2, PM2.5 and O3 from GDP. (3) The synergy characteristics between CO2 and PM2.5, CO2 and O3 were different. This paper put forward the policies according to the conclusions.
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