简介:Embodiedcarbonintradehasattractedtheattentionofresearchers,developers,andindustryleadersworldwide,asithasbecomeaconsiderablesourceoftradeconflict.BecauseChinaistheworld’sleadingcarbon-emittingcountry,itisimportanttostudythechangetrendsofembodiedCO2inChinesetradetoidentifykeyinfluencingfactors.ThispaperinvestigatesthetradeembodiedCO2inChina,withspecialfocusontheproductionprocessandmaterialsofeachindustrialsectorfrom1990to2013.Thisstudywasconductedbyusinganinput-outputmodel,whichanalyzesthespecificcausesofperiodicwaves.Ourfindingssuggestthatthemachinemanufacturingsectorproducedthelargestshareofemissions,whereasthemetalandnon-metalsectorhasthehighestemissionintensity.Moreover,thetotalemissionquantitiesintradeincreasedfrom612to3331milliontonsin1990to2013,aperiodcharacterizedbydecentralizedtrendsinemissionsexportedtotradepartners.Wealsoemployedthelog-meanDivisiaindex(LMDI)modeltodecomposethecarbonemissionschangesintoexportstructure,exportscale,energystructure,andenergyintensity,andestimatetheinfluenceofthesefactorsatanumberoftimepoints.Wefoundthatenergyintensitycurbsemissionsincrease,andthatexportscaleexpansionisthestrongestdrivingforce.
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简介:随着为期两周的华沙气候大会的落下帷幕,会议结果差强人意。利益永远是可持续发展中无法绕开的沟渠。面对环境和利益的问题,碳交易这样一种不确定的风险收益的交易方式应运而生。碳交易的出现给了全球为环境共同努力的基础,没有永远的敌人,没有永远的朋友,只有永恒的利益,同样是碳交易前途光明的佐证。然而碳排放权如何进入以及以何种姿态进入财务报表却是争论至今的问题,然而碳交易进入财务报表比需要解决的是碳排放权成本计量难题。本文分析了学者们关于碳成本的分类和成本核算模式,指出其中存在的问题。在梳理各方观点的基础上提出了自己的看法,对碳排放成本的核算建议作为联产品处理,并利用行业特征(本文以煤炭行业为例说明)及售价法进行两次分配的模式。只有让企业收益才能增强减排的积极性,真正实现获利和减排的双赢目的。