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GlobalWarming2021/5/911234BackgroundReasonProblemSolution目錄CONTENT2021/5/92

The

climate

has

been

getting

steadily

warmer

and

warmer

in

recent

years.

Background12021/5/93Theaverageglobaltemperature

risessignificantlyafterenteringtheeightiesGlobalwarmingiscoming!!!!2021/5/94

Therearemanyreasonsoftheglobalwarming,butitmainlycausedbyhumanactivitiesReason22021/5/95Initialcausesoftemperaturechanges3421AerosolsandsootGreenhousegasesVariationsinEarth'sorbitSolaractivity2021/5/96Fossilfuel

burning

land-usechangePopulationgrowth1GreenhousegasesCO22021/5/97Inadditiontotheirdirecteffectbyscatteringandabsorbingsolarradiation,aerosolshaveindirecteffectsontheEarth'sradiationbudget.2Aerosolsandsoot2021/5/983SolaractivityThesun’activitiescausevolcaniceruption,andproducealargenumberofash2021/5/994VariationsinEarth'sorbitVariationsinorbitalcyclesmayinitiateanewglacialperiodinthefuture,thoughthetimingofthisdependsongreenhousegasconcentrationsaswellastheorbitalforcing.

2021/5/910

GlobalwarmingcausesallsortsofproblemsProblem32021/5/911ExtremeweatherSealevelriseLong-termeffectsEcologicalsystems12342021/5/912ExtremeweatherProjectionssuggestaprobableincreaseinthefrequencyandseverityofsomeextremeweatherevents,suchasheatwaves,Elnino(厄爾尼諾),drought,floods,thunderstorms,hail(冰雹),storm,theheatandduststorms2021/5/913SeaLevelRise19thcentury

——riseattherateof0.10to0.15peronehundredmetersIce,islands,citydisappearBringdisastertothecoastalareas2021/5/914Terrestrial(陸地)ecosystemsthreatencoralreefs,fisheries,protectedspecies,andothernaturalresourcesofvaluetosocietyEffecttheflightofthemigratorybirdsaffectparticularecosystemsreduceddiversityofecosystemsoceanecosystem123EcologicalsystemsAir2021/5/915effectsLong-termAbruptclimatechangearesponsefromtheEarth'scrusttherapidreleaseofmethaneandcarbondioxidefrompermafrostinjuryandlossoflifealargerisktoglobalandregionalfoodsecurityEconomicandInfrastructureloss2021/5/916

LowcarbonlifeSolution42021/5/917MitigationAdaptationClimateengineeringMitigationofclimatereducegreenhousegasemissions,orenhancethecapacityofcarbonsinkstoabsorbGHGsfromtheatmosphereLocaladaptationeffortsEnhancingadaptivecapacityAgriculturalproductionMorespendingonirrigationWeathercontrolDammingglaciallakesGeoengineeringMigrationInsurancesolarradiationmanagementandcarbon

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