公平与效率双准则下我国区域碳排放权分配研究——基于改进的ZSG-DEA模型

The Allocations of Regional Carbon Emission Allowances on the Principle of Justice and Efficiency——Based on the Modified ZSG-DEA Model

为应对全球气候变化,中国提出到2030年实现“碳达峰”、2060年实现“碳中和”,碳减排是实现“双碳目标”的重要手段,而科学合理地分配碳排放权是推进碳减排的基础。综合考虑区域碳排放历史责任、减排潜力,重构碳排放权分配比例系数,并以ZSG-DEA模型为基础,构建考虑区域合作关系的碳排放权分配模型。研究结果表明:全国层面,共有7%的碳排放量需要参与重分配;区域层面,东部地区未来整体减排压力较大,中部地区减排压力适中,而西部地区碳排放权配额较为充足;省份层面,能源效率高、减排责任和减排潜力较小的省份最终碳排放权配额较多。

The rational allocations of carbon emission allowances is the essential and basic step to cut greenhouse gas emission for the goal of carbon peaking by 2030 and carbon neutrality by 2060 set by the Chinese government to address climate change.This paper constructs a ZSG-DEA-based carbon emission trading model by taking into account the historical responsibility,emission reduction capability,and reallocation of emission quota.Research suggests the different levels of allocations and scenarios with a total of 7%of carbon emission to be nationally redistributed,East China under greater pressure for the overall future emission reduction,Central China moderate and West China sufficient for its carbon emissions quotas.In terms of provinces,more quotas are allocated to those with higher energy efficiency,better completion of carbon emission assignments and less room for further emission cuts.