Study On CO₂ Emissions Accounting And Influence Factors On Production Side And Consumption Side In The Jing-Jin-Ji Region

Since the Reform and opening,China’s economy has grown rapidly and has become an important engine for global economic growth,but China is also facing tremendous carbon emission reduction pressures.The Jing-Jin-Ji region is one of the key development areas of the Chinese economy,and it has been facing a serious haze pollution problem in recent years.Because of the positive synergistic correlation between haze pollution and carbon emissions,in order to clarify the causes of environmental pollution in the Jing-Jin-Ji region,this paper takes CO₂ emissions as the research object.Based on the world input-output model embedded in China’s multi-region,this paper regards the Jing-Jin-Ji region as a whole,and analyses the CO₂ transfer between the Jing-Jin-Ji region and other regions in China and other countries in the world.The main findings of this paper are as follows:（1）The production-based CO₂emissions in the Jing-Jin-Ji region increased rapidly from 2002 to 2012,among them,the CO₂ emissions caused by the export of intermediate products accounted for a large proportion,and mainly served the southeastern coastal provinces（such as Jiangsu,Zhejiang,Shanghai,Guangdong,etc.）and the surrounding provinces of the Jing-Jin-Ji region（such as Inner Mongolia,Liaoning,Shandong,etc.）.Foreign carbon exports from Jing-Jin-Ji region are mainly concentrated in developed economies such as the European Union,the United States and Japan.From the sectoral level,"Electricity,Gas and Water Supply industry"and other high-carbon sectors account for a larger proportion of CO₂emissions.（2）The consumption-based CO₂ emissions in the Jing-Jin-Ji region also increased rapidly during the study period,in which the import of intermediate products caused a large amount of CO₂ emissions.From the domestic perspective,the Jing-Jin-Ji region has consumed a large number of products in surrounding provinces（Shanxi,Shaanxi,Inner Mongolia,Henan,Shandong,Liaoning）,resulting in a large amount of CO₂ emissions;from the perspective of foreign inflows,the Jing-Jin-Ji region imports of large quantities of goods from Brazil,India,Indonesia,Russia（BRIIT）and the rest of the world（ROW）have led to a large proportion of emissions;From the sectoral level,a large proportion of CO₂ emissions in the Jing-Jin-Ji region are caused by consumption of products from downstream sectors such as"construction industry"and"other services".（3）The production-based CO₂ emissions in the Jing-Jin-Ji region have always been greater than the consumption-based CO₂ emissions,and the Jing-Jin-Ji region is the net export region for CO₂ emissions.By analyzing the influencing factors of production-based and consumption-based CO₂ emissions in the Jing-Jin-Ji region.It is found that the growth of final demand scale in the Jing-Jin-Ji region and the growth of final demand scale in other regions in China are the main factors driving the growth of production-based CO₂emissions of the Jing-Jin-Ji region.The most important factor that restrains the growth of production-based CO₂ emission of the Jing-Jin-Ji region is the decrease of carbon emission intensity effect in the production sector of the Jing-Jin-Ji region.Based on the analysis of the conclusions,this paper proposes some feasible suggestions on carbon emission reduction in the Jing-Jin-Ji region.