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Global WarmingEnglish•Overview ofGlobal Warming•Greenhouse gasemissions•Evidence of global warming•Measures toaddress globalwarming•International CooperationandPolicy•Personal actionsandparticipation01Overview ofGlobalWarmingDefinition andcharacteristicsGlobal warmingrefers to the phenomenonwhere theaverage temperatureof theEarthcontinues torise.The maincharacteristics of global warminginclude an increase inEarths averagetemperature,glacier melting,rising sea levels,and anincrease in the frequency and intensityofextreme climateevents.The causesof global warmingThe maincause ofglobal warmingis Humanactivities,such asburning fossiltheincrease ingreenhouse gasfuels anddeforestation,release largeemissionscaused byhuman activities.amounts ofcarbon dioxideand othergreenhouse gases,leading toanexacerbation of the greenhouseeffectand ultimatelycausing global warming.The impactofglobal warmingGlobal warminghas awide-ranging impacton Globalwarming maylead toanincreasein thenaturalecosystems andhuman society.frequencyandintensity ofextreme climateevents,such asfloods anddroughts;Negativeimpacts onagriculture andfisheries;And itleadsto speciesextinction anda decreaseinbiodiversity.Meanwhile,global warmingwillexacerbate povertyand socialinequality,andhave far-reaching impactson theglobaleconomy.02Greenhouse gasemissionsCarbon dioxideCarbon dioxide isthe mostabundant greenhouse gas emittedfrom humanactivities,mainly throughthe burningof fossilfuelsIt hasa longatmospheric lifetime,allowing itto accumulatein theatmosphereand trapheat,leading toglobal warmingCarbondioxide emissions are responsible for approximately80%of theradial forcing caused by all greenhouse gasesMethaneMethaneis agreenhouse gasthat ismore potentialthan carbondioxide intrapping heatItis invitedfrom naturalsources such as wetlandsand animalhusbandry,as wellas humanactivitieslike ricecultivation,landfills,and naturalgas productionMethaneemissionsareresponsibleforabout16%of theradial forcingcaused byallgreenhouse gasesNitrogenoxide010203Nitrogen oxidesare excitedThey contributeto theNitrogen oxidesalso reactfromcombustion processesformation ofground levelwith otheratmosphericsuch asvehicle exhaustszone,a harshair pollutantcompounds toform acidandpower plantsthat cancause respiratoryrainproblemsCFCs ChlorofluorocarbonsCFCsare syntheticgreenhouse gasesthat wereused invariousapplications likereflection andaerosolsThey havebeen phasedout underthe MontrealProtocol due totheir rolein unfoldingthe ozonelayerCFCs havea longatmospheric lifetimeand areresponsible forabout5%oftheradialforcingcausedbyallgreenhousegases03Evidence ofglobal warmingGlaciermeltingGlaciers areretreating atan Glaciermelting isa keyindicatorincreasing rate,losing massand ofglobalwarming,as Glaciersareshrinking insize Thisis dueto sensitiveto changesinwarming temperatures,which istemperature Theretry ofglaciersdue toice tomelt andglaciers toVS iscontributing tosealevelriskreceive andaffecting waterresources inmanyregionsSea levelriseSea levelrisk isa directresult ofglobal warningAs theEarths temperatureincreases,the polarice capsandglaciers melt,causing sea levels toriseSea levelrise posesa significantthreat tocoastal citiesand lowlying areas,as itcan lead to flooding,erosion,andplacement ofpeople Risingsealevelsalso affectmarine ecosystemsand infrastructureExtremeweather eventsExtremeweather eventssuch asheat waves,These eventsare causedby changesindroughts,floods,and stormsare becomingmore atmosphericcirculation patternsand temperaturefrequentand intensiveduetoglobalwarminggradients,which areinfluenced byrisinggreenhouse gasemissions Extremeweatherevents havenegative impactson humanhealth,infrastructure,and theenvironmentSpecifications extractionand ecosystemchangesGlobal warmingis drivingspecifications Ecosystemsare alsoexperiencing shiftsinextraction andcausing significantchanges tospecifications composition,range,andecosystems Astemperatures rise,some backgroundThis canleadtoa loss ofspecifications areunable toadapt quicklybiodiversity anddisrupt ecologicalbalance Theenoughto thechanging environmentand facelossofspecifications andecosystems hasextensionnegative implicationsfor humanwell beingandsustainable development04Measures toaddress globalwarmingReducinggreenhousegasemissions要点一要点二要点三CarbondioxideMetal emissionsNitrous oxideemissionsemissionsImplementing policies to Investingin technologiesand Promotingsustainableenhance thereduction ofcarbon practicesto reducemetal agriculturalpractices thatreducedioxide emissions from fossilfuels,emissionsfromagriculture,Nitrous oxideemissions fromsuch as taxationon carbonlandfills,and naturalgas fertilizeruseemissions orpromoting cleanproductionenergy sourcesImprovingenergy efficiencyEnergysaving appliancesEnhancingthe productionand purchaseof energyeffective appliances,such asLEDlights,effective air conditioning andheating systemsEnergysaving buildingsAdoptingenergy savingdesign featuresin newbuildings andretrofitting existingbuildingsto improvetheir energyefficiencyTransportation efficiencyPromotingpublic transportation,cycling,walking,and poolingto reduceindividualvehicle emissionsDevelopingrenewable energySolarenergy GeothermalenergyInvesting insolar panelExploringand developingtechnologyand supportinggeothermalresources toprovidepolicies thatencode thecleanheat andpowerwidespreadd use of solarenergyWind energyDevelopingwind turbinetechnologyand establishingwindfarms togenerate cleanenergyAfforestation andForest ProtectionPlantingnew forestsPromotingthe planningof newforests ondeforested landto absorbcarbondioxide fromthe atmosphereForestpreservationEncouraging theprotection ofexisting forestsby promotingsustainablelogging practicesand preventingdeforestation05International CooperationandPolicyInternational ClimateAgreement要点一要点二1992United Nations2015Paris AgreementFramewo…This agreement was signedat theEarth Summitin Thisagreementwasadopted atthe21st ConferenceRiode Janeiroand entered into force on21March ofthe PartiestotheUNFCCC inParis,France,and1994It commitsits partsto limitgreenhousegasenteredintoforceon4November2016It aimstoemissions andpromote sustainabledevelopment limitglobalwarmingto wellbelow2°C abovepreindustrial levelsand pusheffects tolimit itto
1.5°CNational climatepolicyCarbon taxesSomecountries have implemented carbontaxes,which areleft onemitters ofgreenhousegases Thetaxes aredesigned toresource emittersto reducetheiremissions andprovide governmentrevenue forclimate changemitigationmeasuresRenewable energypoliciesMany countrieshaveimplementedpoliciestoenrich thedevelopment anduseof renewable energy sources,such assolar,wind,and hydroelectricpowerThese policiesoften includesubsidiaries,tax incentives,and mandatesfor acertainpercentage ofrenewableenergyinthenational energymixCorporate SocialResponsibility andSustainableDevelopmentEnvironmental reportingGreen consumerCorporations are increasinglyrequired toreport Consumersare becomingmore awareof theontheir environmentalimpacts,including environmentalimpacts ofproducts and servicesgreenhouse gasemissions,water use,and wasteand areincreasingly demandingsustainablegeneration Thesereports areoften preparedin alternativesCorporationsareresponding byaccordancewith internationalstandards such as offeringmore environmentallyfriendly productstheGlobal ReportingInitiative GRIor theandservicesand byengaging insustainableCarbon DisclosureProject CDPbusiness practices06Personal actionsandparticipationEnhance environmental awarenessUnderstanding thebasic conceptsofglobalwarmingUnderstanding thecauses,impacts,and responsemethods ofglobal warmingisthe foundationfor raisingenvironmentalawareness.Pay attentionto environmentalnews andinformationFollow environmentalnews,reports,and scientificresearch tounderstand thelatesttrends andresponse measureson globalwarming.Participate inenvironment…Join orsupport environmentalorganizations,participate inenvironmentalactivities,and worktogether withothers topromote environmentalprotection.Reduce energyconsumptionEnergy conservationand emissionreductionIn dailylife,try to reduce energyconsumption asmuch aspossible,such assaving waterand electricity.Green travelChoose green modes of transportationsuchaspublic transportation,cycling,or walkingtoreduceprivatecar travel.Reasonable useof electricalappliancesTry tominimize theuseofhigh energyconsuming appliancesand makereasonable useofelectrical equipmentsuchasairconditioningand television.ChoosegreenmodesoftransportationPublic transportationPriorityshould begiven topublic transportationsuch asbuses,subways,etc.Cycling or walkingChoose cyclingorwalkingfor shorttrips orsuitable travelconditions.Green travel softwareUse greentravelsoftwaresuchascarpooling andbikesharing toreduce vehicleemissions.THANKS感谢观看。