‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'simultaneously.However,there were few stud...‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'simultaneously.However,there were few studies to evaluate and compare the level of co-control of CO_(2) and local air pollutants in cities year.The present study proposed qualitative and quantitative methods to evaluate the level of co-control of CO_(2)and three local air pollutant(SO_(2).NOX,and particulate matter PM)emissions in key environmental protection cities in China over two periods(2012-2015 and 2015-2018).Statistical analysis found that,though three local air pollutant emissions positively correlated with CO_(2) emission,no significantly positive correlation was found between local air pollutants emission reductions and CO_(2) emission reductions,indicating that co-control effects were poor in general.By using the co-control effect coordinate system,qualitative evaluation showed that less than half of the sample cities could achieve co-control of the total amount of CO_(2) and local air pollutants.By employing the indicator of emission reduction equivalence(EReq),quantitative evaluation showed that the co-control level of the sample cities improved in 2015-2018 compared with 2012-2015.Further regression analysis showed that,reducing coal consumption and economic development significantly enhanced the co-control performance of the observed cities.The present case study proved that the proposed methods for evaluation and comparison of the city co-control performance works well,and can be used in other countries and regions to promote global cities racing to carbon and local air pollutants co-control.展开更多
Greenhouse gas emission regulation and renewable energy promotion policies have been implemented in many countries.Yet these two kinds of regulation policies have complex interactions between each other,and can either...Greenhouse gas emission regulation and renewable energy promotion policies have been implemented in many countries.Yet these two kinds of regulation policies have complex interactions between each other,and can either enhance or reduce the overall emission reduction efficiency.If not well tuned,these regulation policies may deviate from their original intention and lead to unnecessary social cost.Hence,the policy effectiveness,cost effectiveness,and dynamic efficiency of different policy mixtures between emission trading and renewable energy subsidy are studied based on a novel dynamic simulation platform of power economy and power system.Simulation results show that these two kinds of regulation policy can coexist,but a good coordination between the emission trading and the renewable energy subsidy can achieve better emission reduction outcomes.展开更多
This paper develops manufacturer＇s channel selection models considering carbon emission reduction and remanufacturing. The models are based on the cap-and-trade system and consumer＇s preference for low-carbon produc...This paper develops manufacturer＇s channel selection models considering carbon emission reduction and remanufacturing. The models are based on the cap-and-trade system and consumer＇s preference for low-carbon product. We study the strategies of pricing and carbon emission reduction under three channel structures： pure online channel, pure offiine channel and dual channel. The results show that a higher recovery rate of remanufacturing can bring a higher reduction in carbon emission level and a lower price for consumers in the three channel structures. Compared to the pure online channel and pure offiine channel, the dual channel is the optimal selection for a for-profit manufacturer However, for a retailer, the pure offiine channel is more profitable than the dual channel. From the perspective of carbon emission reduction, the dual channel and the pure online channel generate the same effect; the pure offiine channel makes the highest reduction in carbon emission when consumers＇ acceptance for online channel is low. More managerial insights are provided in sensitivity analysis.展开更多
基金This work was co-supported by The Energy Foundation project‘Co-control effect assessment of deep decarbonization measures and the co-control path way in China'(G-1809-28536)the Major Projects of the National Social Science Foundation‘Study on action plan for peaking carbon emissions by 2030 in China'(21ZDA085).
文摘‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'simultaneously.However,there were few studies to evaluate and compare the level of co-control of CO_(2) and local air pollutants in cities year.The present study proposed qualitative and quantitative methods to evaluate the level of co-control of CO_(2)and three local air pollutant(SO_(2).NOX,and particulate matter PM)emissions in key environmental protection cities in China over two periods(2012-2015 and 2015-2018).Statistical analysis found that,though three local air pollutant emissions positively correlated with CO_(2) emission,no significantly positive correlation was found between local air pollutants emission reductions and CO_(2) emission reductions,indicating that co-control effects were poor in general.By using the co-control effect coordinate system,qualitative evaluation showed that less than half of the sample cities could achieve co-control of the total amount of CO_(2) and local air pollutants.By employing the indicator of emission reduction equivalence(EReq),quantitative evaluation showed that the co-control level of the sample cities improved in 2015-2018 compared with 2012-2015.Further regression analysis showed that,reducing coal consumption and economic development significantly enhanced the co-control performance of the observed cities.The present case study proved that the proposed methods for evaluation and comparison of the city co-control performance works well,and can be used in other countries and regions to promote global cities racing to carbon and local air pollutants co-control.
基金This work was jointly supported by the Major Projects on Planning and Operation Control of Large Scale Grid,State Grid Corporation of China(SGCC-MPLG001-2012)State Grid EPRI Project(YS11002)the National Natural Science Foundation of China(91024028).
文摘Greenhouse gas emission regulation and renewable energy promotion policies have been implemented in many countries.Yet these two kinds of regulation policies have complex interactions between each other,and can either enhance or reduce the overall emission reduction efficiency.If not well tuned,these regulation policies may deviate from their original intention and lead to unnecessary social cost.Hence,the policy effectiveness,cost effectiveness,and dynamic efficiency of different policy mixtures between emission trading and renewable energy subsidy are studied based on a novel dynamic simulation platform of power economy and power system.Simulation results show that these two kinds of regulation policy can coexist,but a good coordination between the emission trading and the renewable energy subsidy can achieve better emission reduction outcomes.
文摘This paper develops manufacturer＇s channel selection models considering carbon emission reduction and remanufacturing. The models are based on the cap-and-trade system and consumer＇s preference for low-carbon product. We study the strategies of pricing and carbon emission reduction under three channel structures： pure online channel, pure offiine channel and dual channel. The results show that a higher recovery rate of remanufacturing can bring a higher reduction in carbon emission level and a lower price for consumers in the three channel structures. Compared to the pure online channel and pure offiine channel, the dual channel is the optimal selection for a for-profit manufacturer However, for a retailer, the pure offiine channel is more profitable than the dual channel. From the perspective of carbon emission reduction, the dual channel and the pure online channel generate the same effect; the pure offiine channel makes the highest reduction in carbon emission when consumers＇ acceptance for online channel is low. More managerial insights are provided in sensitivity analysis.
