Non‐Parametric Modelling of CO2 Emission Quota

Dutch glasshouse firms are facing the introduction of a system of tradable CO₂ emission quotas. This paper employs a non‐parametric method for modelling tradable CO₂ emissions of Dutch glasshouse firms. The method is capable of generating shifts in CO₂ emissions across the sample of firms. Moreover, changes in volumes of outputs produced and inputs used are computed. Results show that firms using a conventional heating technology will be net purchasers of CO₂ emissions, whereas firms using more advanced heating technologies will sell part of their emission quota.     

森林碳汇:后京都时代减排的重要途径

分析指出森林碳汇较其他减排措施具有潜力大、易操作、见效快、成本低、对经济增长影响小、居民福利高的独特优越性,必将受到国家气候变化应对措施选择的青睐。同时指出,森林碳汇不但包括换取排放中的造林和再造林的碳汇项目,而且包括抵消排放中的增加的森林碳库。分析国际气候变化谈判的焦点难点,指出森林碳汇必将成为后京都时代减排的重要途径之一。     

Do global CO2 emissions from fossil-fuel consumption exhibit long memory? a fractional-integration analysis

In this article we use an autoregressive fractionally integrated moving average approach to measure the degree of fractional integration of aggregate world CO₂ emissions and its five components – coal, oil, gas, cement, and gas flaring. We find that all variables are stationary and mean reverting, but exhibit long-term memory. Our results suggest that both coal and oil combustion emissions have the weakest degree of long-range dependence, while emissions from gas and gas flaring have the strongest. With evidence of long memory, we conclude that transitory policy shocks are likely to have long-lasting effects, but not permanent effects. Accordingly, permanent effects on CO₂ emissions require a more permanent policy stance. In this context, if one were to rely only on testing for stationarity and non-stationarity, one would likely conclude in favour of non-stationarity, and therefore that even transitory policy shocks have permanent effects. Our fractional-integration analysis highlights that this is not the case.     

Status of CO2 emissions; driving forces and mitigation countermeasles of Tianjin, China

Climate change is a long-term and important challenge facing the whole world. Mitigation of CO2 emissions is one of important measures responding to climate change. The task of responding to climate change facing each city is very urgent. The total amount of Tianjin City＆#39;s CO2 emissions from energy use and industrial processes is large and the amount of CO2 emissions per capita from fossil fuel combustion is quite high. Mitigation of CO2 emission in Tianjin City encounters many difficulties such as increasing population, rapidly growing economy, heavy industrial structure, backward tertiary industry, low level of energy efficiency and product technologies, and energy structure relying mainly on coal. This paper analyzes Tianjin City＆#39;s general situation of economic and social developments, estimates Tianjin City＆#39;s status of CO2 emissions using 2006 IPCC Guidelines for National Greenhouse Gas Inventories, analyzes Tianjin City＆#39;s driving forces of CO2 emissions by methodology to analyze the driving forces of energy-related CO2 emissions, and puts forward countermeasures mitigating CO2 emissions in Tianjin City, such as strictly controlling increasing population, expediting industrial structure adjustment, insisting on strategy of energy conserving, vigorously enhancing energy efficiency, exploiting and using clean and renewable energy, advancing energy structure adjustments, and actively developing carbon capture and storage （CCS） technologies.     

中国贸易开放与温室气体排放:文献综述

目前,全球气候变暖作为世界环境问题的四大热点之一不断升温,国际社会各种多边或双边活动日益频繁。中国作为CO2等温室气体排放大国,面临国际减排的压力与日俱增。西方国家鼓吹的"中国气候威胁论"也愈演愈烈,致使中国成为世界气候变暖的众矢之的,然而,通过对国内外文献的梳理,我们发现快速增长的外贸出口和不断扩大的贸易顺差才是导致中国碳排放增长的真正"源头",那些大量消费甚至奢侈消费"中国制造"商品的发达国家同样肩负一定的责任,一味指责中国是不公正、不公平和片面的。     

CO2气体保护焊在焊接工艺的应用浅析

二氧化碳气体保护电孤焊(简称CO2焊)的保护气体是二氧化碳.由于二氧化碳气体的热物理性能的特殊影响,使用常规焊接电源时,焊丝端头熔化金属不可能形成平衡的轴向自由过渡,通常需要采用短路和熔滴缩颈爆断、因此,与MIG焊自由过渡相比飞溅较多.针对这个问题主要介绍了CO2气保焊焊接操作技术及需注意的一些问题,对CO2气保焊焊接工艺设计及其应用具有一定的指导作用.     

中国对美出口贸易中的隐含碳排放——基于出口排名前十位货物的比较分析

通过利用EIO-LCA软件,我们对中国出口美国前十位货物的隐含碳进行分部门计算。结果认为:中国出口美国前十位货物的隐含碳总量约占总出口的75%以上.其中,隐含碳排放量较高的出口主要是:办公室机器和自动资料处理仪器、杂项制品、电信和录音及音响设备和仪器等三类产品;较低的主要集中于以提供生活消费品和制作手工工具为主的轻纺工业。     

Technical efficiency and CO2 abatement policies in the Dutch glasshouse industry

This paper develops a short-run microeconomic simulation model of the Dutch glasshouse industry in order to investigate the relation between technical efficiency and marginal abatement costs of CO₂ emission. The model is also used to determine the effects of an emission tax and systems of tradable and non-tradable quota for groups of firms with different rates of technical efficiency. The results show that marginal abatement costs are very responsive to changes in technical efficiency. Furthermore, it is found that firms with a low technical efficiency are faced with a higher profit reduction under different abatement policies than firms with a high technical efficiency.     

林业的历史性转变与碳交换机制的建立

地球大气CO2含量上升是导致地球水、气、热循环失常以及生物多样性减少的主要原因。全球对林业的主要生态需求是发挥森林减少大气CO2含量的功能。现在人们公认的许多林业理念是偏颇的,需要纠正。地球生态危机说明CO2排放空间是稀缺资源,发展的结果必然导致在全球分配CO2排放权,从而产生CO2排放权交易、碳汇产权化、生态服务有形化、有偿化。     

中国出口贸易隐含碳排放增长及其驱动因素研究

文章基于可比价投入产出表,利用结构分解分析法研究了中国出口贸易隐含碳排放增长及其驱动因素。中国出口贸易隐含碳排放数量巨大,在中国碳排放总额中占比很高,且在行业分布和国别流向方面表现出较高的集中度;出口总量增长是导致中国出口贸易隐含碳排放增长的主要因素,而直接排放系数降低和中间生产技术进步对碳排放增长起到了一定的抑制作用,但出口结构改善对抑制碳排放增加的作用非常有限,在某些年份和个别出口贸易伙伴中,由于结构恶化反而导致碳排放增加。因此,我国在采取措施降低出口碳排放强度的同时,亟需进一步加大出口商品升级换代的力度。