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51.
Tao Pang  Zhe Deng 《Climate Policy》2018,18(8):1044-1058
China's national emissions trading scheme (ETS) is expected to be operational in 2017. Effectively addressing regional disparities at the provincial level in allowance allocation will greatly affect the acceptance of the allocation approach and thus deserves careful consideration. This article aims to explore possible approaches for addressing regional disparities, by introducing regional adjustment factors (RAF) in free allowance allocation. Based on the principle of ‘national unified rules?+?stricter adjustment by provincial authorities’, four single factorial and three multi-factorial methods are proposed to calculate the RAFs, through a normalization process. These methods are associated with the most acknowledged factors dealing with regional disparities, including per-capita GDP; per-capita CO2 emissions; industrial sector contribution to GDP; economy-wide emissions control targets and CO2 emissions per unit GDP, per unit power and heat output and per unit industrial added value. A comparative analysis is made for the seven methods, in regard to value distribution and level of matching regional political demand.

Key policy insights
  • ‘Allowing stricter regional adjustment’ represents a dominant feature for China's national ETS, which aims to address regional disparities and government demands.

  • How the adjustment plan is designed will have a major influence on the operation of the national ETS and regional business competitiveness. Provincial governments need to consider the trade-off between auction revenue and local business competitiveness.

  • Applying the different methods leads to more scattered results for some regions, for whom the choice of adjustment approach will therefore have a greater impact.

  • Based on the analysis, four adjustment methods that generate similar results – the per-capita GDP-based method, the intensity reduction target-based method, the 12th FYP target-based method and intensity-based grandfathering – are recommended for most provincial-level regions, with some exceptions.

  相似文献   
52.
The shale gas boom in the United States spurred a shift in electricity generation from coal to natural gas. Natural gas combined cycle units emit half of the CO2 to produce the same energy as a coal unit; therefore, the market trend is credited for a reduction in GHG emissions from the US power sector. However, methane that escapes the natural gas supply chain may undercut these relative climate benefits. In 2016, Canada, the United States and Mexico pledged to reduce methane emissions from the oil and natural gas sector 40–45% from 2012 levels by 2025. This article reviews the science-policy landscape of methane measurement and mitigation relevant for meeting this pledge, including changes in US policy following the 2016 presidential election. Considerable policy incoherence exists in all three countries. Reliable inventories remain elusive; despite government and private sector research efforts, the magnitude of methane emissions remains in dispute. Meanwhile, mitigation efforts vary significantly. A framework that integrates science and policy would enable actors to more effectively inform, leverage and pursue advances in methane measurement and mitigation. The framework is applied to North America, but could apply to other geographic contexts.

Key policy insights

  • The oil and gas sector’s contribution to atmospheric methane concentrations is becoming an increasingly prominent issue in climate policy.

  • Efforts to measure and control fugitive methane emissions do not presently proceed within a coherent framework that integrates science and policy.

  • In 2016, the governments of Canada, Mexico and the United States pledged to reduce methane emissions from the oil and natural gas sector 40–45% from 2012 levels by 2025.

  • The 2016 presidential election in the United States has halted American progress at the federal level, suggesting a heavier reliance on industry and subnational efforts in that country.

  • Collectively or individually, the countries, individual agencies, or private stakeholders could use the proposed North American Methane Reduction framework to direct research, enhance monitoring and evaluate mitigation efforts, and improve the chances that continental methane reduction targets will be achieved.

  相似文献   
53.
This article analyses the implementation of emissions trading systems (ETSs) in eight jurisdictions: the EU, Switzerland, the Regional Greenhouse Gas Initiative (RGGI) and California in the US, Québec in Canada, New Zealand, the Republic of Korea and pilot schemes in China. The article clarifies what is working, what isn’t and why, when it comes to the practice of implementing an ETS. The eight ETSs are evaluated against five main criteria: environmental effectiveness, economic efficiency, market management, revenue management and stakeholder engagement. Within each of these categories, ETS attributes ? including abatement cost, stringency of the cap, improved allocation practices over time and the trajectory of price stability ? are assessed for each system. Institutional learning, administrative prudence, appropriate carbon revenue management and stakeholder engagement are identified as key ingredients for successful ETS regimes. Recent implementation of ETSs in regions including California, Québec and South Korea indicates significant institutional learning from prior systems, especially the EU ETS, with these regions implementing more robust administrative and regulatory structures suitable for handling unique national and sub-national opportunities and constraints. The analysis also shows that there is potential for a ‘double dividend’ in emissions reductions even with a modest carbon price, provided the cap tightens over time and a portion of the auctioned revenues are reinvested in other emissions-reduction activities. Knowledge gaps exist in understanding the interaction of pricing instruments with other climate policy instruments and how governments manage these policies to achieve optimum emissions reductions with lower administrative costs.

Key policy insights
  • Countries are learning from each other on ETS implementation.

  • Administrative and regulatory structures of ETS jurisdictions appear to evolve and become more robust in every ETS analysed.

  • A ‘double dividend’ for emissions reductions may also exist in cases where mitigation occurs as a result of the ETS policy and when auction revenues are reinvested in other emissions-reduction activities.

  相似文献   
54.
采用表观能源消费数据进行分能源品种和分行业类型的碳排放总量核算,利用基于IDA理论和Kaya恒等式的LMDI模型对碳排放总量变化进行多要素的分解分析,在解析人口规模效应、经济产出效应、能源强度效应对碳排放影响机理的同时,进一步纳入人口结构性因素、产业结构性因素和能源结构性因素对碳排放的影响。以广州市为例,对其2003—2013年产业活动和居民消费2个部门碳排放的主要驱动因素进行时间序列分析,并定量研究各个影响因子在2003—2005、2005—2010和2010—2013年3个不同发展阶段的作用机理,主要研究结论如下:1)广州市能源消费及其碳排放前期以煤炭为主,近年来以石油为主,同时外购电力对广州市的能源消费结构优化影响显著。2)各影响因子对广州市碳排放总量变化的作用机理与影响机制在3个发展阶段各不相同,不同发展阶段的发展措施和政策背景对于各个影响因子的碳排放效应影响显著。3)总体分析,经济产出效应和人口规模效应是产业部门碳排放增长的最主要贡献因子;工业能源消费强度效应、工业能源消费结构效应和经济结构效应是遏制产业部门碳排放增长的最主要贡献因子。城镇居民收入效应是居民消费碳排放增长的最主要贡献因子,城镇居民能源消费强度效应是遏制居民消费碳排放增长的最主要贡献因子。  相似文献   
55.
Quantitative analysis of the impact factors in energy-related CO2 emissions serves as an important guide for reducing carbon emissions and building an environmentally-friendly society. This paper aims to use LMDI method and a modified STIRPAT model to research the conventional energy-related CO2 emissions in Kazakhstan after the collapse of the Soviet Union. The results show that the trajectory of CO2 emissions displayed U-shaped curve from 1992 to 2013. Based on the extended Kaya identity and additive LMDI method, we decomposed total CO2 emissions into four influencing factors. Of those, the economic active effect is the most influential factor driving CO2 emissions, which produced 110.86 Mt CO2 emissions, with a contribution rate of 43.92%. The second driving factor is the population effect, which led to 11.87 Mt CO2 emissions with a contribution rate of 4.7%. On the contrary, the energy intensity effect is the most inhibiting factor, which caused–110.90 Mt CO2 emissions with a contribution rate of–43.94%, followed by the energy carbon structure effect resulting in–18.76 Mt CO2 emissions with a contribution rate of–7.43%. In order to provide an in-depth examination of the change response between energy-related CO2 emissions and each impact factor, we construct a modified STIRPAT model based on ridge regression estimation. The results indicate that for every 1% increase in population size, economic activity, energy intensity and energy carbon structure, there is a subsequent increase in CO2 emissions of 3.13%, 0.41%, 0.30% and 0.63%, respectively.  相似文献   
56.
南京市土地利用结构碳排放效率增长及其空间相关性   总被引:1,自引:1,他引:0  
范建双  虞晓芬  周琳 《地理研究》2018,37(11):2177-2192
采用南京市11个区2005-2014年的相关数据,首先对不同类型土地的碳排放量进行核算,进一步将其作为非期望产出引入DEA模型并采用Hicks-Moorsteen指数对南京市各区的土地利用结构碳排放效率增长进行估算、比较和分析。研究结果表明:① 碳排放的主要来源是建设用地的间接碳排放,研究期内的土地利用碳排放量呈现出持续增长的发展态势。② 全要素碳排放效率增长及其分解要素均低于传统全要素生产率增长,即不考虑碳排放约束的全要素生产率增长高估了实际的土地利用效率增长水平。全要素碳排放效率增长在研究期内表现出收敛态势和区域之间均衡性的发展特征,源于“低碳和高效”发展理念的深入人心,单位GDP能耗不断降低。③ 南京市各区的技术效率值较低,“技术追赶”效应不明显,开始出现土地利用的规模经济效应,但是范围经济效应不显著。④ 全要素碳排放效率增长在南京市范围内具有空间正相关性,且表现出空间集聚特征。基于此,提出了一些有益的建议。  相似文献   
57.
基于消费责任制的碳排放核算及全球环境压力   总被引:3,自引:0,他引:3  
钟章奇  姜磊  何凌云  王铮  柏玲 《地理学报》2018,73(3):442-459
因区域间贸易而转移的碳排放对于全球各个国家或者地区的碳排放核算及其减排责任划分具有重要而深远的影响。通过构建多区域投入产出分析模型和基于扩展的STIRPAT模型,本文核算了全球39个主要国家基于消费责任制的碳排放,并在此基础上深入探讨了全球环境压力的影响因素问题。研究发现:首先,从以净流出为主的中国和俄罗斯来看,尽管贸易给这些地区带来了大量的资源,但随之会产生严重的区域生态环境问题。而对于美国和欧盟等地区来说,这些国家或者地区通过全球贸易规避了大量的碳减排责任。此外,在全球贸易中,区域净流出的贸易隐含碳排放越小,基于消费责任制核算的区域碳排放量就越大,故而在全球减排目标分配中承担的减排任务也需相应地增加。全球贸易隐含碳排放净流出量较大的地区主要位于亚洲和东欧等地,而净流出量最小的地区主要是以西欧和北美等高度发达的经济体为主。其次,就基于消费责任制核算下的全球环境压力而言,人口因素和富裕程度是导致全球环境压力不断增加的两个重要因素,而提高生产技术水平以及逐渐提高清洁能源在总能源消费中的比重是推动全球节能减排、缓解全球环境压力的有效途径。  相似文献   
58.
通过耦合投入产出分析方法和结构分解模型,探讨2002~2010年区域碳排放转移的演变特征、驱动因素及其地理源特征。研究发现:2002~2010年流出和流入河南省的贸易隐含碳排放均处于不断增加的趋势,其中流出贸易隐含碳排放主要是受外部最终需求的影响,且主要集中在中国的中部和东南部地区,而流入贸易隐含碳排放则主要是受本地最终需求和本地最终产品结构的影响最为显著,且主要来源于中国的东部、东北部和中部地区。研究还发现,为减轻贸易对区域碳排放及其减排责任的影响,开展区域合作来共同减排比单个地区独自应对更为有利,但在区域合作中各地区的获益程度可能会有所差别。  相似文献   
59.
针对不同区域实行“共同而又有区别”的污染治理政策是实现区域联防治理大气污染的有效措施,而随着省际贸易加强,难免导致污染物在不同区域间的转移。本文采用区域间投入产出模型,对中国30省区间省际贸易隐含PM2.5进行核算。结果表明,省际贸易隐含PM2.5约占总PM2.5排放的1/3,经济危机使得省际贸易隐含PM2.5量变小,但贸易隐含PM2.5在以生产计算的PM2.5排放中的作用在增大。东部省区的省际调出贸易隐含PM2.5主要由最终消费部分导致,而中、西、东北省区则主要为中间投入部分导致,在控制贸易隐含排放时,需对不同调出类型省区采用不同的控制方法。省际调入贸易隐含PM2.5主要由中间投入过程贸易隐含PM2.5构成,越来越多的产品在不同省区间共同生产完成,区域联合治污显得尤为必要。东北、西部、中部省区由固定资本形成导致的省际贸易隐含PM2.5比例要高于东部省区,可见政策导向也是造成贸易隐含排放的原因之一。需重点控制省际贸易隐含PM2.5排放量较高建筑业、机械设备制造业和其他服务业。除河北、山东外,东部省区均为省际贸易隐含PM2.5净调入省份,中、西部、东北省区中则多为省际贸易隐含PM2.5净调出省份。经济危机使得省际间净贸易隐含PM2.5的转移量变小,但并未改变其转移趋势。净调入省区需相应的补偿净调出省区,或对其进行技术转移。  相似文献   
60.
Studies of global environmental change make extensive use of scenarios to explore how the future can evolve under a consistent set of assumptions. The recently developed Shared Socioeconomic Pathways (SSPs) create a framework for the study of climate-related scenario outcomes. Their five narratives span a wide range of worlds that vary in their challenges for climate change mitigation and adaptation. Here we provide background on the quantification that has been selected to serve as the reference, or ‘marker’, implementation for SSP2. The SSP2 narrative describes a middle-of-the-road development in the mitigation and adaptation challenges space. We explain how the narrative has been translated into quantitative assumptions in the IIASA Integrated Assessment Modelling Framework. We show that our SSP2 marker implementation occupies a central position for key metrics along the mitigation and adaptation challenge dimensions. For many dimensions the SSP2 marker implementation also reflects an extension of the historical experience, particularly in terms of carbon and energy intensity improvements in its baseline. This leads to a steady emissions increase over the 21st century, with projected end-of-century warming nearing 4 °C relative to preindustrial levels. On the other hand, SSP2 also shows that global-mean temperature increase can be limited to below 2 °C, pending stringent climate policies throughout the world. The added value of the SSP2 marker implementation for the wider scientific community is that it can serve as a starting point to further explore integrated solutions for achieving multiple societal objectives in light of the climate adaptation and mitigation challenges that society could face over the 21st century.  相似文献   
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