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1、清华网络学堂中国应对全球气候变化的立场和行动China'sPositionandActiontoAddressGlobalClimateChangeTsinghuaUniversityHeJiankunOctober29,20151.气候变化是人类面临的最大威胁,中国积极推进应对气候变化的合作进程Climatechangeisthebiggestthreatfacinghumanity;Chinaactivelypromotestheprocessofcooperationonclimatechange中国
2、分别与美国、欧盟、巴西、印度发表气候变化联合声明,为促进巴黎气候大会成功凝聚共识。Respectively,ChinaandtheUnitedStates,EuropeanUnion,Brazil,andIndiaissuedajointdeclarationonclimatechange,inordertopromoteasuccessfulCOP21climateconferenceinParis.公布2020年后国家自主决定贡献(INDC),确立积极的、有雄心的CO2减排目标和峰值目标。內促发展,外树
3、形象。Releasepost-2020IntendedNationallyDeterminedContribution(INDC),andestablishpositive,ambitiousCO2emissionreductiontargetsandpeakinggoals.Promotedomesticdevelopmentandsetupapositiveinternationalimage.151029-清华网络学堂2.近百年来全球正在经历气候变暖的过程,其负面影响日益显现,全球生态安全面临严峻挑战T
4、heworldwarmsupduringthepastcentury,ofwhichthenegativeeffectsisincreasinglyapparent.Globalecologicalsecurityfacesaseriouschallenge——近百年地表平均温度上升了0.8℃,海平面上升17cm。——Duringthelasthundredyears,theaveragesurfacetemperatureoftheearthhasrisenby0.8degreesCelsius,witht
5、hesealevelrising17cm.气候变化引起海平面上升、海洋酸化、风暴潮增加、河流径流量减少、农作物产量下降、自然生态退化、生物多样性受损、人体健康受到损害、极端气象灾害事件增加等。Climatechangeinducessea-levelrise,oceanacidification,increasedstormsurge,riverrunoffreduction,cropyieldsdecline,naturalandecologicaldegradation,biodiversityloss
6、,anddamagetohumanhealthaswellasincreasingextremeweatherevents.151029-清华网络学堂3.人为活动的温室气体排放是引起当前气候变化的主要原因,全球合作应对气候变化已是各国共识Greenhousegasemissionsfromhumanactivityisamajorcauseofcurrentclimatechange.Globalcooperationtodealwithclimatechangehasbeenaninternationalc
7、onsensus——大气中CO2浓度从工业革命前的280ppmv已上升到目前的395ppmv。——CO2concentrationsintheatmospherehasrisenfrom280ppmvbeforetheindustrialrevolutiontothecurrent395ppmv.——IPCC第五次评估报告:当前气候变化95%以上的可能是人为活动所引起。——IPCCFifthassessmentreport:Itismorethan95%possiblethatcurrentclimatech
8、angeiscausedbyhumanactivity.151029-清华网络学堂4.为保护地球生态与人类社会可持续发展,全球已开展应对气候变化的合作进程Inordertoprotecttheearth'secologyandthesustainabledevelopmentofhumansociety,globalcooperationtoaddressclimatechangehasbeenla