Addressing climate change demands a significant shift away from fossil fuels,with sectors like electricity and transportation relying heavily on renewable energy.Integral to this transition are energy storage systems,...Addressing climate change demands a significant shift away from fossil fuels,with sectors like electricity and transportation relying heavily on renewable energy.Integral to this transition are energy storage systems,notably lithium-ion batteries.Over time,these batteries degrade,affecting their efficiency and posing safety risks.Monitoring and predicting battery aging is essential,especially estimating its state of health(SOH).Various SOH estimation methods exist,from traditional model-based approaches to machine learning approaches.展开更多
With the implementation of the Belt and Road Initiative, China is deepening its cooperation in oil and gas resources with countries along the Initiative. In order to better mitigate risks and enhance the safety of inv...With the implementation of the Belt and Road Initiative, China is deepening its cooperation in oil and gas resources with countries along the Initiative. In order to better mitigate risks and enhance the safety of investments, it is of significant importance to research the oil and gas investment environment in these countries for China's overseas investment macro-layout. This paper proposes an indicator system including 27 indicators from 6 dimensions. On this basis, game theory models combined with global entropy method and analytic hierarchy process are applied to determine the combined weights, and the TOPSIS-GRA model is utilized to assess the risks of oil and gas investment in 76 countries along the Initiative from 2014 to 2021. Finally, the GM(1,1) model is employed to predict risk values for 2022-2025. In conclusion, oil and gas resources and political factors have the greatest impact on investment environment risk, and 12 countries with greater investment potential are selected through cluster analysis in conjunction with the predicted results. The research findings may provide scientific decisionmaking recommendations for the Chinese government and oil enterprises to strengthen oil and gas investment cooperation with countries along the Belt and Road Initiative.展开更多
The 4th Asian Conference of International Association for Energy Economics （IAEE）, themed “Energy Economics： New Challenges and Solutions”, was held in Beijing, China, from September 19 to 21, 2014. Nearly 400 de...The 4th Asian Conference of International Association for Energy Economics （IAEE）, themed “Energy Economics： New Challenges and Solutions”, was held in Beijing, China, from September 19 to 21, 2014. Nearly 400 delegates from 28 countries and regions shared state-of-the-art research findings in the field of energy economics and explored possible solutions to energy and environmental challenges. This is the first IAEE event ever held in China＇s mainland, and it will play an important role in promoting the development of energy economics and coping with the real challenges we face.展开更多
The vision of reaching a carbon peak and achieving carbon neutrality is guiding the low-carbon transition of China’s socioeconomic system.Currently,a research gap remains in the existing literature in terms of studie...The vision of reaching a carbon peak and achieving carbon neutrality is guiding the low-carbon transition of China’s socioeconomic system.Currently,a research gap remains in the existing literature in terms of studies that systematically identify opportunities to achieve carbon neutrality.To address this gap,this study comprehensively collates and investigates 1105 published research studies regarding carbon peaking and carbon neutrality.In doing so,the principles of development in this area are quantitively analyzed from a space–time perspective.At the same time,this study traces shifts and alterations in research hotspots.This systematic review summarizes the priorities and standpoints of key industries on carbon peaking and carbon neutrality.Furthermore,with an emphasis on five key management science topics,the scientific concerns and strategic demands for these two carbon emission-reduction goals are clarified.The paper ends with theoretical insights on and practical countermeasures for actions,priority tasks,and policy measures that will enable China to achieve a carbon-neutral future.This study provides a complete picture of the research status on carbon peaking and carbon neutrality,as well as the research directions worth investigating in this field,which are crucial to the formulation of carbon peak and carbon neutrality policies.展开更多
Mine closure is associated with many negative impacts on society and the environment.If these effects are not rationally addressed,they would pose risks of mine closure.Thus,a risk management method is needed to mitig...Mine closure is associated with many negative impacts on society and the environment.If these effects are not rationally addressed,they would pose risks of mine closure.Thus,a risk management method is needed to mitigate these adverse impacts and address mine-closure issues.An integral framework for mine-closure risk management that includes risk assessment and risk treatment was proposed.Given the fuzziness and randomness of the transformation between qualitative and quantitative knowledge in the risk assessment process,a novel risk assessment method based on the cloud model was presented,which fully considers the uncertainty in risks themselves and in the reasoning process.Closed mine reutilization is an effective risk treatment option in response to the identified high risks,but it requires selecting optimal reutilization strategies for the successful implementation of the reuse plan.To this end,a hybrid semi-quantitative decision method is proposed to optimize decision-making.The results of a case study showed that this risk management methodology can help budget planning for risk treatment and provide an instructional framework to effectively reduce the negative effects of closed mines.展开更多
The existing oil import dependence index cannot exactly measure the economic cost or scales, and it is difficult to describe the economical aspect of oil security. To measure the foreign dependence of one country'...The existing oil import dependence index cannot exactly measure the economic cost or scales, and it is difficult to describe the economical aspect of oil security. To measure the foreign dependence of one country's economy and reflect its oil economic security, this paper defines the net oil import intensity as the ratio of net oil import cost to GDP. By using Divisia Index Decomposition, the change of net oil import intensity in five industrialized countries and five newly industrialized countries during 1971—2010 is decomposed into five factors: oil price, oil intensity, oil self-sufficiency, domestic price level and exchange rate. The result shows that the dominating factors are oil price and oil intensity; moreover, the newly industrialized countries have higher net oil import intensity than industrialized countries.展开更多
As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomp...As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomposition analysis (SDA) method at a regional level. Then this model is employed to empirically analyze the changes of Beijing's energy intensity. The conclusions are as follows: during 2002-2010, except petroleum, the energy intensity decreased and the changes were mostly attributed to the technology changes, while the final use variation actually increased the energy intensity; comparing different periods of 2002-2010, the decline rates of energy intensity for coal and hydropower were decreasing, resulting from the production technology being more energy-intensive than before; the energy intensity changes of petroleum firstly increased substantially and then decreased moderately.展开更多
One of the greatest challenges faced by the energy and economic system is the risk of environmental and climate change.The models that have been developed to study the principle and dynamics of the energy,environment,...One of the greatest challenges faced by the energy and economic system is the risk of environmental and climate change.The models that have been developed to study the principle and dynamics of the energy,environment,and economic system are called展开更多
It is well recognized that carbon dioxide and air pollutants share similar emission sources so that synergetic policies on climate change mitigation and air pollution control can lead to remarkable co-benefits on gree...It is well recognized that carbon dioxide and air pollutants share similar emission sources so that synergetic policies on climate change mitigation and air pollution control can lead to remarkable co-benefits on greenhouse gas reduction,air quality improvement,and improved health.In the context of carbon peak,carbon neutrality,and clean air policies,this perspective tracks and analyzes the process of the synergetic governance of air pollution and climate change in China by developing and monitoring 18 indicators.The 18 indicators cover the following five aspects:air pollution and associated weather-climate conditions,progress in structural transition,sources,inks,and mitigation pathway of atmospheric composition,health impacts and benefits of coordinated control,and synergetic governance system and practices.By tracking the progress in each indicator,this perspective presents the major accomplishment of coordinated control,identifies the emerging challenges toward the synergetic governance,and provides policy recommendations for designing a synergetic roadmap of Carbon Neutrality and Clean Air for China.展开更多
This paper provides an extended input-occupancy-output analysis of wastewater discharge coeffcients, as well as backward and forward linkages of Chinese multi-regional industrial sectors in2007. The results show that ...This paper provides an extended input-occupancy-output analysis of wastewater discharge coeffcients, as well as backward and forward linkages of Chinese multi-regional industrial sectors in2007. The results show that the direct and total industrial wastewater discharge coeffcients of most of the provincial industrial sectors in China＇s Eastern region are lower than those of the whole country.Both backward and forward linkages of fixed-asset occupancy in industrial sectors in China＇s Central and Western regions are strong. The dissimilarity of cross-sectional data of the relevant industrial wastewater discharge coeffcients and linkages in multi-regional input-output analysis becomes bigger as regions are divided more extensively.展开更多
The current cost-plus natural gas pricing mechanism makes the gas price too low,resulting in a lot of consumer-side subsidies and over-consumed natural gas.This paper applies the price-gap approach and input-output an...The current cost-plus natural gas pricing mechanism makes the gas price too low,resulting in a lot of consumer-side subsidies and over-consumed natural gas.This paper applies the price-gap approach and input-output analysis technology to quantitatively analyze both the direct and indirect effects on urban residents under the condition that natural gas subsidies are cancelled in China in 2007.It is shown that the gas price will increase by 33.3%-41.6%,and the residential consumption expenditure by 0.26%-0.33%.The low-income groups are mostly affected,so different subsidies should be implemented to make subsidies more efficient.展开更多
In this paper, a two-region endogenous growth model is adapted to analyse Western China's development,and regional divergence and convergence processes. Dynamic optimization is utilized to calculate the growth rat...In this paper, a two-region endogenous growth model is adapted to analyse Western China's development,and regional divergence and convergence processes. Dynamic optimization is utilized to calculate the growth rate of the Chinese economy on the optimal growth path, and backward integration is utilized to simulate the evolvement of some key indicators, including relative GDP per capita of Western China to Eastern China, regional capital growth rate and regional GDP growth rate. The calibrations of this model after 1992 are conducted. The calibration results provide evidence about the speed of Western China's relative development, and also shed some light on the future regional convergence process under the Western Development Programme launched in 2000.展开更多
In the Industry 4.0 era,disruptive technologies such as big data analytics,blockchain,Internet-of-Things,and additive manufacturing have become major forces driving supply chain transformation.Under such circumstances...In the Industry 4.0 era,disruptive technologies such as big data analytics,blockchain,Internet-of-Things,and additive manufacturing have become major forces driving supply chain transformation.Under such circumstances,particular attention should be attached to balancing resilience and efficiency of the supply chain,especially in the presence of more turbulence.In this study,we first summarize the conflicts between supply chain efficiency and supply chain resilience regarding practices and objectives.Then,we discuss the positive effects of disruptive technologies in improving resilience and efficiency.Afterwards,we propose a research agenda that covers both the influence mechanism and trade-off mechanism of these technologies in terms of resilience and efficiency.展开更多
Rural residents have unique lifestyle characteristics,energy consumption methods,energy-saving behaviors,and awareness.And the direct carbon emission from rural residents is based on the combined effect of multiple fa...Rural residents have unique lifestyle characteristics,energy consumption methods,energy-saving behaviors,and awareness.And the direct carbon emission from rural residents is based on the combined effect of multiple factors.In order to address the complexity of factors affecting the direct carbon emissions from rural household,this study used a structural equation model to examine the effect of multi-factor variables on direct carbon emissions from rural households in central China.Data were collected using questionnaires and surveys in six cities in central China to reflect the daily reality of rural residents.The results show that quality of life and awareness of energy conservation can affect the direct carbon emissions of rural residents.Family characteristics and awareness of energy conservation affected carbon emissions indirectly by affecting the daily behaviors and quality of life of the residents;consumption characteristics,energy-saving behaviors,and energy conservation policies are not the main factors contributing to the direct carbon emissions of the residents.Based on the results,future studies can focus on energy conservation education,improvement of the living habits,coal energy use efficiency,and energy consumption structure of residences.展开更多
Due to concerns about carbon leakage and sectoral competitiveness,the European Union(EU)proposed implementing the carbon border adjustment mechanism(CBAM).The effectiveness and potential negative consequences of CBAM ...Due to concerns about carbon leakage and sectoral competitiveness,the European Union(EU)proposed implementing the carbon border adjustment mechanism(CBAM).The effectiveness and potential negative consequences of CBAM have aroused extensive discussion.From the perspective of the economy-wide analysis,this study uses a global computable general equilibrium model to explore the rationality of CBAM from the aspects of socioeconomic impact and the effects of promoting climate mitigation.Furthermore,the potential alternative mechanism of CBAM is proposed.The results show that CBAM can reduce the EU's gross domestic product(GDP)loss;however,the GDP loss in all other regions increases.Moreover,CBAM raises household welfare losses in most regions,including the EU.Second,although CBAM can reduce the marginal abatement cost in eight regions,it comes at the cost of greater economic losses.Furthermore,the economic and household welfare cost of raising emissions reduction targets in regions like the USA and Japan is substantially higher than the impact of passively accepting the CBAM;therefore,CBAM's ability to drive ambitious emission reduction initiatives may be limited.Finally,for the potential alternative mechanism,from the perspective of reducing economic cost and household welfare losses,the EU could implement domestic tax cuts in the short-term and promote global unified carbon pricing in the long-term.展开更多
The Green Climate Fund （GCF） has been one of the core issues of the world climate summits under the United Nations Framework Convention on Climate Change （UNFCCC） in recent years. However, the GCF has not progress...The Green Climate Fund （GCF） has been one of the core issues of the world climate summits under the United Nations Framework Convention on Climate Change （UNFCCC） in recent years. However, the GCF has not progressed smoothly, and currently there are no satisfactory schemes for raising and distributing the fund. This paper first discusses how to finance the GCF among Annex II countries. It introduces the ＇preference score compromises＇ （PSC） approach which is based on environmental responsibility and economic capacity, with historical emissions as an indicator for environmental responsibility and GDP as indicator for economic capacity. The results show that the United States and the European Union are the two largest contributors to the GCF, sponsoring more than 80% of the funds. Second, we discuss how to allocate the funds among non-Annex II parties. The ＇adaptation needs＇ （AN） approach, which takes account of economic strength and climate damages, is proposed to achieve the adaptation purpose of the GCF, and the results reveal that African countries with high levels of climate vulnerability could get most funds, with a share of almost 30%. Regarding the mitigation purpose of the GCF, this research introduces two approaches： the ＇carbon reduction contribution＇ （CC） approach and the ＇incremental cost＇ （IC） approach. Both approaches could achieve significant reductions in carbon emissions in non-Annex II parties, whereas the latter may provide limited adaptation finance but result in more mitigation effects. This paper also develops a method to combine abatement efficiency and adaptation fairness of the GCF, and we find that with an equal split between the AN and CC （or AN and IC） approaches, the amount of USD 100 billion could finance an emissions reduction of 1613 MtCO2 （2477 MtCO2）, while allocating USD 16 （or USD 9） per capita for adaptation in non-Annex II parties. The schemes proposed may be useful for promoting the development of the GCF in the future.展开更多
A trinomial tree model based on a real options approach was developed to evaluate the investment decisions on carbon capture,utilization,and storage(CCUS)retrofitted to the three main types of thermal power plants in ...A trinomial tree model based on a real options approach was developed to evaluate the investment decisions on carbon capture,utilization,and storage(CCUS)retrofitted to the three main types of thermal power plants in China under the same power generation and CO2 emissions levels.The plant types included pulverized coal(PC),integrated gasification combined cycle(IGCC),and natural gas combined cycle(NGCC)plants.We take into account a subsidy policy consistent with the 45Q tax credit of the U.S.,as well as uncertainty factors,such as carbon price,technological progress,CO_(2) geological storage paths,oil price,and electricity price.The results showed that the investment benefit of ordinary NGCC power plants is 93.04 million USD.This provides greater economic advantages than the other two plant types as their investment benefit is negative if the captured CO_(2) was used for enhanced water recovery(EWR),even if 45Q subsidies are provided.Compared with NGCC+CCUS power plants,PC+CCUS and IGCC+CCUS power plants have more advantages in terms of economic benefits and emission reduction.The 45Q subsidy policy reduced the critical carbon price,which determines the decision to invest or not,by 30.14 USDt^(-1) for the PC and IGCC power plants and by 15.24 USDt^(-1) for the NGCC power plants.Nevertheless,only when the subsidy reaches at least 71.84 USDt^(-1) and the period limit is canceled can all three types of power plants be motivated to invest in CCUS and used the capture CO_(2) for EWR.Overall,the government should focus on the application of CCUS in coal-fired power plants(in addition to developing gas power generation),especially when CO_(2) is used for enhanced oil recovery(EOR).The government could introduce fiscal policies,such as 45Q or stronger,to stimulate CCUS technology development in China.展开更多
Carbon capture,utilization,and storage(CCUS),as a technology with large-scale emission reduction potential,has been widely developed all over the world.In China,CCUS development achieved fruitful outcomes.CCUS gained ...Carbon capture,utilization,and storage(CCUS),as a technology with large-scale emission reduction potential,has been widely developed all over the world.In China,CCUS development achieved fruitful outcomes.CCUS gained further broad attention from the announcement of the carbon neutrality target by 2060,as CCUS is an indispensable important technology to realize carbon neutrality.It helps not only to build zero-emission and more resilient energy and industry systems but also provides negative emission potential.This paper discusses the new demand for carbon capture,utilization,and storage development brought by the carbon neutrality target analyzes the development status.As there remain various challenges of CCUS development,this paper focuses on several key issues for CCUS development in China targeting carbon neutrality:1)how to reposition the role of CCUS under the carbon neutral target?2)how shall we understand the technology development status and the costs?3)what role shall utilization and storage play in future?4)potential strategy applied to solve challenges of source-sink mismatch and resources constraints;and 5)new business model that suits large scale deployment of CCUS.This paper puts forward several policy suggestions that should be focused on now in China,especially to raise awareness under the vision of carbon neutrality that the role and contribution of CCUS are different,to accelerate the establishment of a comprehensive and systematic enabling environment for CCUS.展开更多
Climate change assessment is central for lowcarbon management practice. This paper investigates China's National Climate Change Assessment Reports of 2007, 2011, and 2015. These three reports are compared with oth...Climate change assessment is central for lowcarbon management practice. This paper investigates China's National Climate Change Assessment Reports of 2007, 2011, and 2015. These three reports are compared with other climate change assessment reports by data mining. The necessity of national climate change assessment is analyzed with the requirements at home and abroad. The latest progress surrounding climate change impacts, adaptation, and mitigation is outlined with the increasing temperature rise in China and the urgency of climate change commitments. The achievements in climate change assessment indicate the increasing climate change vulnerability on sectors and regions in China and the strategies and priorities for low-carbon actions. Distinct gaps and differences are identified in the coverage of industry, regions, and vulnerability assessment between our assessments and other evaluation reports. These gaps and differences demonstrate the importance and future improvements of China's national climate change assessment in international climate governance. The outlook for China's fourth assessment report is proposed.展开更多
Vulnerability means the degree to which that a system is susceptible to suffer damage. This paper focuses on the economic vulnerability to risk of energy import by employing ratio of net energy import to GDP as indica...Vulnerability means the degree to which that a system is susceptible to suffer damage. This paper focuses on the economic vulnerability to risk of energy import by employing ratio of net energy import to GDP as indicator, and decomposes the vulnerability change into effects of energy import, structure and intensity in order to find out key factors that influence economic security to energy import. Decomposition analysis on China indicates that effect of rising energy import takes more than 90 percent of total vulnerability change during the last 10 years, along with insignificant effect of structural change and intensity decline. International analysis on cross- section data of net energy importers also presents the positive relationship between external energy dependence and economic vulnerability. However, results of America show that long-term effect of energy intensity is much larger than China from 1954 to 2007, which is 70.8% of its total vulnerability change. Experience from developed countries confirms the necessary and validity of improving energy efficiency on depressing economic vulnerability to energy import, which provides lessons for the energy development of China.展开更多
基金supported by the National Natural Science Foundation of China(72201152 and 52207229)。
文摘Addressing climate change demands a significant shift away from fossil fuels,with sectors like electricity and transportation relying heavily on renewable energy.Integral to this transition are energy storage systems,notably lithium-ion batteries.Over time,these batteries degrade,affecting their efficiency and posing safety risks.Monitoring and predicting battery aging is essential,especially estimating its state of health(SOH).Various SOH estimation methods exist,from traditional model-based approaches to machine learning approaches.
基金the financial support from the National Natural Science Foundation of China(71934004)Key Projects of the National Social Science Foundation(23AZD065)the Project of the CNOOC Energy Economics Institute(EEI-2022-IESA0009)。
文摘With the implementation of the Belt and Road Initiative, China is deepening its cooperation in oil and gas resources with countries along the Initiative. In order to better mitigate risks and enhance the safety of investments, it is of significant importance to research the oil and gas investment environment in these countries for China's overseas investment macro-layout. This paper proposes an indicator system including 27 indicators from 6 dimensions. On this basis, game theory models combined with global entropy method and analytic hierarchy process are applied to determine the combined weights, and the TOPSIS-GRA model is utilized to assess the risks of oil and gas investment in 76 countries along the Initiative from 2014 to 2021. Finally, the GM(1,1) model is employed to predict risk values for 2022-2025. In conclusion, oil and gas resources and political factors have the greatest impact on investment environment risk, and 12 countries with greater investment potential are selected through cluster analysis in conjunction with the predicted results. The research findings may provide scientific decisionmaking recommendations for the Chinese government and oil enterprises to strengthen oil and gas investment cooperation with countries along the Belt and Road Initiative.
文摘The 4th Asian Conference of International Association for Energy Economics （IAEE）, themed “Energy Economics： New Challenges and Solutions”, was held in Beijing, China, from September 19 to 21, 2014. Nearly 400 delegates from 28 countries and regions shared state-of-the-art research findings in the field of energy economics and explored possible solutions to energy and environmental challenges. This is the first IAEE event ever held in China＇s mainland, and it will play an important role in promoting the development of energy economics and coping with the real challenges we face.
基金the National Natural Science Foundation of China(71521002,72104025,and 72004011)China’s National Key Research and Development(R&D)Program(2016YFA0602603)China Post-doctoral Science Foundation(2021M690014)。
文摘The vision of reaching a carbon peak and achieving carbon neutrality is guiding the low-carbon transition of China’s socioeconomic system.Currently,a research gap remains in the existing literature in terms of studies that systematically identify opportunities to achieve carbon neutrality.To address this gap,this study comprehensively collates and investigates 1105 published research studies regarding carbon peaking and carbon neutrality.In doing so,the principles of development in this area are quantitively analyzed from a space–time perspective.At the same time,this study traces shifts and alterations in research hotspots.This systematic review summarizes the priorities and standpoints of key industries on carbon peaking and carbon neutrality.Furthermore,with an emphasis on five key management science topics,the scientific concerns and strategic demands for these two carbon emission-reduction goals are clarified.The paper ends with theoretical insights on and practical countermeasures for actions,priority tasks,and policy measures that will enable China to achieve a carbon-neutral future.This study provides a complete picture of the research status on carbon peaking and carbon neutrality,as well as the research directions worth investigating in this field,which are crucial to the formulation of carbon peak and carbon neutrality policies.
基金financially supported by the National Key R&D Program of China(No.2018YFC0831800)the National Natural Science Foundation of China(No.71704178)+3 种基金the Beijing Excellent Talent Program(No.2017000020124G133)the Major Consulting Project of Chinese Academy of Engineering(No.2017-ZD-03)the National Statistical Science Research Project by National Bureau of Statistics of China(No.2017LY10)the Fundamental Research Funds for the Central Universities(No.2020YQNY08)。
文摘Mine closure is associated with many negative impacts on society and the environment.If these effects are not rationally addressed,they would pose risks of mine closure.Thus,a risk management method is needed to mitigate these adverse impacts and address mine-closure issues.An integral framework for mine-closure risk management that includes risk assessment and risk treatment was proposed.Given the fuzziness and randomness of the transformation between qualitative and quantitative knowledge in the risk assessment process,a novel risk assessment method based on the cloud model was presented,which fully considers the uncertainty in risks themselves and in the reasoning process.Closed mine reutilization is an effective risk treatment option in response to the identified high risks,but it requires selecting optimal reutilization strategies for the successful implementation of the reuse plan.To this end,a hybrid semi-quantitative decision method is proposed to optimize decision-making.The results of a case study showed that this risk management methodology can help budget planning for risk treatment and provide an instructional framework to effectively reduce the negative effects of closed mines.
基金Supported by the National Natural Science Foundation of China(No.71273027 and No.71322306)
文摘The existing oil import dependence index cannot exactly measure the economic cost or scales, and it is difficult to describe the economical aspect of oil security. To measure the foreign dependence of one country's economy and reflect its oil economic security, this paper defines the net oil import intensity as the ratio of net oil import cost to GDP. By using Divisia Index Decomposition, the change of net oil import intensity in five industrialized countries and five newly industrialized countries during 1971—2010 is decomposed into five factors: oil price, oil intensity, oil self-sufficiency, domestic price level and exchange rate. The result shows that the dominating factors are oil price and oil intensity; moreover, the newly industrialized countries have higher net oil import intensity than industrialized countries.
基金Supported by Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA05150600)National Natural Science Foundation of China (No. 71273027 and No. 70903066)Beijing Planning Office of Philosophy and Social Science (No. 11JGC105)
文摘As China's energy intensity fluctuated in recent years, it is necessary to examine whether this fluctuation happened at a regional level. This paper establishes a decomposition model by using the structural decomposition analysis (SDA) method at a regional level. Then this model is employed to empirically analyze the changes of Beijing's energy intensity. The conclusions are as follows: during 2002-2010, except petroleum, the energy intensity decreased and the changes were mostly attributed to the technology changes, while the final use variation actually increased the energy intensity; comparing different periods of 2002-2010, the decline rates of energy intensity for coal and hydropower were decreasing, resulting from the production technology being more energy-intensive than before; the energy intensity changes of petroleum firstly increased substantially and then decreased moderately.
文摘One of the greatest challenges faced by the energy and economic system is the risk of environmental and climate change.The models that have been developed to study the principle and dynamics of the energy,environment,and economic system are called
基金This work was supported by the National Natural Science Foundation of China(41921005,42130708,and 72140003)and the Energy Foundation.
文摘It is well recognized that carbon dioxide and air pollutants share similar emission sources so that synergetic policies on climate change mitigation and air pollution control can lead to remarkable co-benefits on greenhouse gas reduction,air quality improvement,and improved health.In the context of carbon peak,carbon neutrality,and clean air policies,this perspective tracks and analyzes the process of the synergetic governance of air pollution and climate change in China by developing and monitoring 18 indicators.The 18 indicators cover the following five aspects:air pollution and associated weather-climate conditions,progress in structural transition,sources,inks,and mitigation pathway of atmospheric composition,health impacts and benefits of coordinated control,and synergetic governance system and practices.By tracking the progress in each indicator,this perspective presents the major accomplishment of coordinated control,identifies the emerging challenges toward the synergetic governance,and provides policy recommendations for designing a synergetic roadmap of Carbon Neutrality and Clean Air for China.
基金supported by the National Natural Science Foundation of China under Grant Nos.41201129 and71203213the Science and Technology Service Network Initiative of the Chinese Academy of Sciences under Grant No.KFJ-EW-STS-003
文摘This paper provides an extended input-occupancy-output analysis of wastewater discharge coeffcients, as well as backward and forward linkages of Chinese multi-regional industrial sectors in2007. The results show that the direct and total industrial wastewater discharge coeffcients of most of the provincial industrial sectors in China＇s Eastern region are lower than those of the whole country.Both backward and forward linkages of fixed-asset occupancy in industrial sectors in China＇s Central and Western regions are strong. The dissimilarity of cross-sectional data of the relevant industrial wastewater discharge coeffcients and linkages in multi-regional input-output analysis becomes bigger as regions are divided more extensively.
基金Supported by Strategic Priority Research Program of Chinese Academy of Sciences (No. XDA05150600)National Natural Science Foundation of China (No. 71041006 and No. 70903066)
文摘The current cost-plus natural gas pricing mechanism makes the gas price too low,resulting in a lot of consumer-side subsidies and over-consumed natural gas.This paper applies the price-gap approach and input-output analysis technology to quantitatively analyze both the direct and indirect effects on urban residents under the condition that natural gas subsidies are cancelled in China in 2007.It is shown that the gas price will increase by 33.3%-41.6%,and the residential consumption expenditure by 0.26%-0.33%.The low-income groups are mostly affected,so different subsidies should be implemented to make subsidies more efficient.
基金Supported by the National Natural Science Foundation of China(No.71403015)
文摘In this paper, a two-region endogenous growth model is adapted to analyse Western China's development,and regional divergence and convergence processes. Dynamic optimization is utilized to calculate the growth rate of the Chinese economy on the optimal growth path, and backward integration is utilized to simulate the evolvement of some key indicators, including relative GDP per capita of Western China to Eastern China, regional capital growth rate and regional GDP growth rate. The calibrations of this model after 1992 are conducted. The calibration results provide evidence about the speed of Western China's relative development, and also shed some light on the future regional convergence process under the Western Development Programme launched in 2000.
基金supported by the National Natural Science Foundation of China(Grant Nos.72272013 and 71971027).
文摘In the Industry 4.0 era,disruptive technologies such as big data analytics,blockchain,Internet-of-Things,and additive manufacturing have become major forces driving supply chain transformation.Under such circumstances,particular attention should be attached to balancing resilience and efficiency of the supply chain,especially in the presence of more turbulence.In this study,we first summarize the conflicts between supply chain efficiency and supply chain resilience regarding practices and objectives.Then,we discuss the positive effects of disruptive technologies in improving resilience and efficiency.Afterwards,we propose a research agenda that covers both the influence mechanism and trade-off mechanism of these technologies in terms of resilience and efficiency.
基金supported by the National Natural Science Foundation of China(71573015,71521002)the National Key Research and Development Program of China(2016YFA0602801).
文摘Rural residents have unique lifestyle characteristics,energy consumption methods,energy-saving behaviors,and awareness.And the direct carbon emission from rural residents is based on the combined effect of multiple factors.In order to address the complexity of factors affecting the direct carbon emissions from rural household,this study used a structural equation model to examine the effect of multi-factor variables on direct carbon emissions from rural households in central China.Data were collected using questionnaires and surveys in six cities in central China to reflect the daily reality of rural residents.The results show that quality of life and awareness of energy conservation can affect the direct carbon emissions of rural residents.Family characteristics and awareness of energy conservation affected carbon emissions indirectly by affecting the daily behaviors and quality of life of the residents;consumption characteristics,energy-saving behaviors,and energy conservation policies are not the main factors contributing to the direct carbon emissions of the residents.Based on the results,future studies can focus on energy conservation education,improvement of the living habits,coal energy use efficiency,and energy consumption structure of residences.
基金the National Natural Science Foundation of China(72293605,72293600,72204013,72074022)R&D Program of Beijing Municipal Education Commission(SM202310005005)China Postdoctoral Science Foundation(2021M700314,2023T160035).
文摘Due to concerns about carbon leakage and sectoral competitiveness,the European Union(EU)proposed implementing the carbon border adjustment mechanism(CBAM).The effectiveness and potential negative consequences of CBAM have aroused extensive discussion.From the perspective of the economy-wide analysis,this study uses a global computable general equilibrium model to explore the rationality of CBAM from the aspects of socioeconomic impact and the effects of promoting climate mitigation.Furthermore,the potential alternative mechanism of CBAM is proposed.The results show that CBAM can reduce the EU's gross domestic product(GDP)loss;however,the GDP loss in all other regions increases.Moreover,CBAM raises household welfare losses in most regions,including the EU.Second,although CBAM can reduce the marginal abatement cost in eight regions,it comes at the cost of greater economic losses.Furthermore,the economic and household welfare cost of raising emissions reduction targets in regions like the USA and Japan is substantially higher than the impact of passively accepting the CBAM;therefore,CBAM's ability to drive ambitious emission reduction initiatives may be limited.Finally,for the potential alternative mechanism,from the perspective of reducing economic cost and household welfare losses,the EU could implement domestic tax cuts in the short-term and promote global unified carbon pricing in the long-term.
基金Supports from the National Natural Science Foundation of China under Grant No.71210005 and No.71273253
文摘The Green Climate Fund （GCF） has been one of the core issues of the world climate summits under the United Nations Framework Convention on Climate Change （UNFCCC） in recent years. However, the GCF has not progressed smoothly, and currently there are no satisfactory schemes for raising and distributing the fund. This paper first discusses how to finance the GCF among Annex II countries. It introduces the ＇preference score compromises＇ （PSC） approach which is based on environmental responsibility and economic capacity, with historical emissions as an indicator for environmental responsibility and GDP as indicator for economic capacity. The results show that the United States and the European Union are the two largest contributors to the GCF, sponsoring more than 80% of the funds. Second, we discuss how to allocate the funds among non-Annex II parties. The ＇adaptation needs＇ （AN） approach, which takes account of economic strength and climate damages, is proposed to achieve the adaptation purpose of the GCF, and the results reveal that African countries with high levels of climate vulnerability could get most funds, with a share of almost 30%. Regarding the mitigation purpose of the GCF, this research introduces two approaches： the ＇carbon reduction contribution＇ （CC） approach and the ＇incremental cost＇ （IC） approach. Both approaches could achieve significant reductions in carbon emissions in non-Annex II parties, whereas the latter may provide limited adaptation finance but result in more mitigation effects. This paper also develops a method to combine abatement efficiency and adaptation fairness of the GCF, and we find that with an equal split between the AN and CC （or AN and IC） approaches, the amount of USD 100 billion could finance an emissions reduction of 1613 MtCO2 （2477 MtCO2）, while allocating USD 16 （or USD 9） per capita for adaptation in non-Annex II parties. The schemes proposed may be useful for promoting the development of the GCF in the future.
基金the financial support of National Natural Science Foundation of China(71874193,71503249,71203008,71904014)the Asia-Pacific Network for Global Change Research(CBA2018-02MY-Fan)+2 种基金Huo Yingdong Education Foundation(171072)the Fundamental Research Funds for the Central Universities(Nos.2020YJSNY01,2020SKNY01)the Open Research Project of State Key Laboratory of Coal Resources and Safe Mining(China University of Mining and Technology,SKLCRSM19KFA14).
文摘A trinomial tree model based on a real options approach was developed to evaluate the investment decisions on carbon capture,utilization,and storage(CCUS)retrofitted to the three main types of thermal power plants in China under the same power generation and CO2 emissions levels.The plant types included pulverized coal(PC),integrated gasification combined cycle(IGCC),and natural gas combined cycle(NGCC)plants.We take into account a subsidy policy consistent with the 45Q tax credit of the U.S.,as well as uncertainty factors,such as carbon price,technological progress,CO_(2) geological storage paths,oil price,and electricity price.The results showed that the investment benefit of ordinary NGCC power plants is 93.04 million USD.This provides greater economic advantages than the other two plant types as their investment benefit is negative if the captured CO_(2) was used for enhanced water recovery(EWR),even if 45Q subsidies are provided.Compared with NGCC+CCUS power plants,PC+CCUS and IGCC+CCUS power plants have more advantages in terms of economic benefits and emission reduction.The 45Q subsidy policy reduced the critical carbon price,which determines the decision to invest or not,by 30.14 USDt^(-1) for the PC and IGCC power plants and by 15.24 USDt^(-1) for the NGCC power plants.Nevertheless,only when the subsidy reaches at least 71.84 USDt^(-1) and the period limit is canceled can all three types of power plants be motivated to invest in CCUS and used the capture CO_(2) for EWR.Overall,the government should focus on the application of CCUS in coal-fired power plants(in addition to developing gas power generation),especially when CO_(2) is used for enhanced oil recovery(EOR).The government could introduce fiscal policies,such as 45Q or stronger,to stimulate CCUS technology development in China.
基金Sponsored by National Key Research and Development Program(2018YFE0196000):Energy and Water Ties and Key Technologies for Efficient and Green Utilization(2018YFE019600005).
文摘Carbon capture,utilization,and storage(CCUS),as a technology with large-scale emission reduction potential,has been widely developed all over the world.In China,CCUS development achieved fruitful outcomes.CCUS gained further broad attention from the announcement of the carbon neutrality target by 2060,as CCUS is an indispensable important technology to realize carbon neutrality.It helps not only to build zero-emission and more resilient energy and industry systems but also provides negative emission potential.This paper discusses the new demand for carbon capture,utilization,and storage development brought by the carbon neutrality target analyzes the development status.As there remain various challenges of CCUS development,this paper focuses on several key issues for CCUS development in China targeting carbon neutrality:1)how to reposition the role of CCUS under the carbon neutral target?2)how shall we understand the technology development status and the costs?3)what role shall utilization and storage play in future?4)potential strategy applied to solve challenges of source-sink mismatch and resources constraints;and 5)new business model that suits large scale deployment of CCUS.This paper puts forward several policy suggestions that should be focused on now in China,especially to raise awareness under the vision of carbon neutrality that the role and contribution of CCUS are different,to accelerate the establishment of a comprehensive and systematic enabling environment for CCUS.
基金National Natural Science Foundation of China (Grant No. 71704178)Beijing Excellent Talent Program (Grant No. 2017000020124G133)+1 种基金Major Consulting Project of Chinese Academy of Engineering (Grant Nos. 2016-ZD-07 and 2017-ZD-03)Beijing Undergraduate Research Training Program (Grant No. C201801229).
文摘Climate change assessment is central for lowcarbon management practice. This paper investigates China's National Climate Change Assessment Reports of 2007, 2011, and 2015. These three reports are compared with other climate change assessment reports by data mining. The necessity of national climate change assessment is analyzed with the requirements at home and abroad. The latest progress surrounding climate change impacts, adaptation, and mitigation is outlined with the increasing temperature rise in China and the urgency of climate change commitments. The achievements in climate change assessment indicate the increasing climate change vulnerability on sectors and regions in China and the strategies and priorities for low-carbon actions. Distinct gaps and differences are identified in the coverage of industry, regions, and vulnerability assessment between our assessments and other evaluation reports. These gaps and differences demonstrate the importance and future improvements of China's national climate change assessment in international climate governance. The outlook for China's fourth assessment report is proposed.
基金This project is supported by National Natural Science Foundation of China（70733005 70701032） the National Key Projects from the Ministry of Science and Technology of China （2006-BAB08B01）
文摘Vulnerability means the degree to which that a system is susceptible to suffer damage. This paper focuses on the economic vulnerability to risk of energy import by employing ratio of net energy import to GDP as indicator, and decomposes the vulnerability change into effects of energy import, structure and intensity in order to find out key factors that influence economic security to energy import. Decomposition analysis on China indicates that effect of rising energy import takes more than 90 percent of total vulnerability change during the last 10 years, along with insignificant effect of structural change and intensity decline. International analysis on cross- section data of net energy importers also presents the positive relationship between external energy dependence and economic vulnerability. However, results of America show that long-term effect of energy intensity is much larger than China from 1954 to 2007, which is 70.8% of its total vulnerability change. Experience from developed countries confirms the necessary and validity of improving energy efficiency on depressing economic vulnerability to energy import, which provides lessons for the energy development of China.
