Research On Cross-regional Collaborative Carbon Emission Reduction Model And Allocation Of Cost Savings From Collaborative CO2 Abatement In China

Climate change is a common global environmental problem.Global warming has already posed a serious threat to mankind.At present,countries in the world have reached a consensus on greenhouse gas emission reduction.Many countries have formulated emission reduction plans in line with their national conditions.China is also facing dual pressures for development and emission reduction.Although the nationwide carbon market has been established,it still takes time for its functions to play.Under this background,exploring the cooperation model of regional cooperation to reduce carbon dioxide emissions is of great significance to the formulation of emission reduction targets and the search for emission reduction paths in China.This article first defines the cost of emission reduction and the cost savings of emission reduction.The Chinese mainland except Tibet and Taiwan is divided into six regions of North China,Northeast,East China,Central China,South China and West.Combined with Murty's environmental production technology and centralized DEA,it constructs the models of non-emission reduction,individual emission reduction and cooperative emission reduction in each region and the optimal time allocation model of carbon emission from the industrial perspective.By comparing the emission reduction and cost savings of 63 different cooperative emission reduction scenarios,this paper determines the most cost-effective cooperative emission reduction relationship and explains it rationally from an industrial perspective.Finally,using the Shapley value method,according to each cooperative participant's contribution to cost savings,the saved cost benefits are distributed to each cooperative participant.The main conclusions of this paper are as follows:(1)The cost and loss of emission reduction alone are related to the regional industrial structure and economic development.Regions with high energy dependence have high emission reduction costs alone,and regions with low economic development have a large proportion of potential output losses.(2)Cooperative emission reduction has indeed saved the cost of emission reduction to some extent.(3)Most cross-regional cooperation to reduce emissions is beneficial to North China,Northeast China,Central China and West China,but will cause economic losses to East China and South China.(4)From an industrial point of view,in the cross-industry and cross-region and cross-time carbon dioxide distribution plan,the electricity and heat production and supply industry has undertaken a large number of carbon emission reduction transfer tasks.(5)The reasonable distribution of cooperative income will make up for the economic losses in East and South China and make it obtain the remaining distribution of cooperative income,and encourage them to participate in cooperative emission reduction.(6)From a national perspective,under the condition of keeping the same carbon dioxide emission reduction,the redistribution of carbon emission reduction tasks in six regions can realize the complementary advantages between regions,stimulate greater production potential,and realize the overall cooperation benefit addition.