高中英語(yǔ)選修六Global Warming課件

高中英語(yǔ)選修六GlobalWarming課件匯報(bào)人：XX2024-02-04contents目錄OverviewofGlobalWarmingTherelationshipbetweengreenhousesgasemissionsandglobalwarmingTheinteractionbetweenecosystemsandglobalwarmingLowcarbonlifestylepracticesandaddressingthechallengeofglobalwarmingcontents目錄ProgressintheconstructionofinternationalcooperationandgovernancemechanismsSummaryreflectionandcalltoaction01OverviewofGlobalWarmingDefinitionGlobalwarmingreferstotheriskintheaveragetemperatureoftheEarth'satmosphereandoceans,causedbyincreasedconcentrationsofgreenhousegasesPhenomenaThisriskintemperaturehasledtoawiderangeofobservedchangesintheEarth'sclimatesystem,includingextremeweatherevents,meltingicecaps,andrisingsealevelsDefinitionandPhenomenaGreenhousegasemissionsThemaincauseofglobalwarmingistheincreasingemissionsofGreenhousegasessuchascarbondioxide,methane,andnitrogenoxidefromhumanactivitieslikeburningfossilfuelsandindustrialprocessesDeforestationAnothersignificantcontributorisdeforestation,whichreducestheEarth'sabilitytoabsorbcarbondioxidefromtheatmosphereCauseanalysisEnvironmentalimpactsGlobalwarminghasledtoarangeofenvironmentalimpacts,includingthelossofbiodiversity,changesinagriculturalyields,andincreasingriskofnaturaldisasterssuchasfloodsanddroughtsSocialandeconomicsequencesThesocialandeconomicsequencesofglobalwarmingarealsosignificant,affectinghumanhealth,infrastructure,andfoodandwatersecurityImpactandsequencesGlobalwarminghasreceivedincreasinginternationalattention,leadingtothedevelopmentofinternationalagreementssuchastheParisAgreement,whichaimstolimitglobaltemperaturerisktowellbelow2degreesCelsiusabovepreindustriallevelsInternationalagreementsManycountriesareworkingtogethertoreducegreenhousegasemissionsandadapttotheimpactsofclimatechangethroughcooperativeeffectssuchastechnologysharing,capacitybuilding,andfinancialassistanceCooperativeeffectsInternationalattentionandcooperation02TherelationshipbetweengreenhousesgasemissionsandglobalwarmingCarbondioxide(CO2):Mainlyfromfossilfuelcombustion,deforestation,andindustrialprocessesMethod(CH4):Producedbyagriculturalactivities,landfills,coalmining,andnaturalgasdistributionNitrousoxide(N2O):Generatedfromagriculturalfertilizeruse,industrialproduction,andcombustionoffossilfuelsFluorinatedgases:includinghydrofluorocarbons(HFCs),perfluorocarbons(PFCs),andsulfurhexafluororide(SF6),mainlyusedinrectification,airconditioning,andsemiconductormanufacturingTypesandsourcesofgreenhousegasesGreenhouseeffect01Greenhousegasestrapheatintheatmosphere,leadingtoglobalwarmingAtmosphericradiationbalance02IssuesalterthebalancebetweenincomingsolarradiationandoutgoingterritorialradiationClimatefeedbackmechanisms03IssuescantriggerfeedbackloopsthatsimplifyorlimitclimatechangesMechanismoftheImpactofEmissionsonGlobalClimateDevelopedcountiesHavehistoricallycontributedthemosttogreenhousegasemissionsandbearthegreatestresponsibilityforclimatechangeDevelopingcountiesArecurrentlyexperiencingrapidindustrializationandurbanization,leadingtoincreasingemissionsInternationalcooperationGlobaleffortsareneededtoaddressclimatechange,withdevelopedcountriesprovidingfinancialandtechnicalsupporttodevelopingcountriesCurrentemissionstatusandresponsibilityallocationinvariouscountriesEnergyconservationandefficiencyimprovement:ReducingenergyconsumptionandimprovingenergyefficiencyareeffectivewaystoreduceemissionsCarboncaptureandstorage:TechnologiesthatcapturecarbondioxidefromindustrialprocessesandstoreitundergroundcanhelpmitigateclimatechangeInternationalpoliciesandagreements:InternationalcooperationandagreementssuchastheParisAgreementaimtolimitglobalwarmingandreducegreenhousegasemissionsRenewableenergydevelopment:Increasingtheuseofrenewableenergysourcessuchassolar,wind,andhydropowercanreducedependenceonfossilfuelsEmissionreductionmeasuresandpolicies03TheinteractionbetweenecosystemsandglobalwarmingTheresponseofecosystemstoclimatechangeClimatechangecandisruptbiologicalcyclessuchashibernation,reproduction,andmigrationpatternsImpactonbiologicalcyclesEcosystemsarehighlysensitivetotemperaturefluctuations,withsomespecificationsbeingmorevolatilethanothersEcosystemssensitivitytotemperaturechangesAsculturesrise,manyspecificationsareforcedtomigratetocoolerregions,leadingtochangesintheirgeographicdistributionShiftsinspecificationsdistribution要點(diǎn)三LossofspecificsGlobalwarmingisaleadingcauseofspecificsextraction,withsomeestimatessuggestingthatupto30-50%ofspecificscouldbeatriskofextractionby2050要點(diǎn)一要點(diǎn)二EcosystemcollapseAsbiodiversitydecreases,ecosystemsbecomemorevulnerabletocollapseduetothelossofkeyspecificationsandthedisruptionofecologicalnetworksInvasivespecificationsClimatechangecanfacilitatethespreadofinvasivespecifications,whichcanexceednativespecificationsandfurtherdisruptecosystems要點(diǎn)三BiodiversityreductionandecologicalbalanceissuesEstablishingprotectedareasCreatingnaturereservesandprotectedareasarecriticalforpreservingbiodiversityandpreventingfurtherecosystemdegradationRestoringdamagedecosystemsEcologicalrestorationprojectsaimtorepairdamagedecosystemsbyremovingpollutants,replacingnativespecifications,andreintroducingkeyspecificationsPromotingsustainablelandusepracticesEncouragingsustainablelandusepracticessuchasagroforestry,conservationagriculture,andintegratedpestmanagementcanhelpmitigatetheimpactsofclimatechangeonecosystemsNatureReserveConstructionandEcologicalRestorationStrategiesCarbonemissionsandglobalwarmingHumanactivitiessuchasbasalfuelcombustionanddepletionaremajorcontributorstocarbonemissionsandglobalwarmingUrbanizationandlandusechangeUrbanexpansionandlandusechangehaveledtotheconstructionofnaturalhabitatsandthefragmentationofecosystemsPollutionandinvasivespecificationsHumanactivitiesalsocontributetopollutionandthespreadofinvasivespecifications,bothofwhichcanhavenegativeimpactsonecosystemsUnderstandingtheImpactofHumanActivitiesonEcosystems04LowcarbonlifestylepracticesandaddressingthechallengeofglobalwarmingPleaseenteryourcontentLowcarbonlifestylepracticesandaddressingthechallengeofglobalwarming05ProgressintheconstructionofinternationalcooperationandgovernancemechanismsPleaseenteryourcontentProgressintheconstructionofinternationalcooperationandgovernancemechanisms06Summaryreflectionandcalltoaction輸入標(biāo)題02010403SummaryandReviewofKeyKnowledgePointsThedefinition,causes,andeffectsofglobalwarmingwerereviewedThepotentialimpactsofglobalwarmingonecosystems,agriculture,sealevelrisk,andhumanhealthwereexploredTheimportanceofreducingemissions,adaptingrenewableenergysources,andimplementingenergyeffectivepracticeswasdiscussedTheroleofgreenhousegases,specificallycarbondioxide,inglobalwarmingwasemphasizedStudentssharedtheirunderstandingofglobalwarminganditssequencesStudentsidentifiedareaswheretheyneedfurtherimprovementandwaystoenhancetheirlearningexperienceTheyreflectedontheirlearningprocess,includingchallengesandsuccessesTheyalsosharedtheirthoughtsonhowtoapplywhattheyhavelearnedtotheirdailylivesStudentself-evaluationreportsharingTeachersprovidedfeedbackonstudents'understandingofthecoursecontentandtheirengagementinclassactivitiesTheyofferedsuggestionsforimprovement,