全球变暖英文PPT课件

.,1,GlobalWarming,.,2,1,2,3,4,Background,Reason,Problem,Solution,目录CONTENT,.,3,Theclimatehasbeengettingsteadilywarmerandwarmerinrecentyears.,Background,1,.,4,Theaverageglobaltemperaturerisessignificantlyafterenteringtheeighties,Globalwarmingiscoming!,.,5,Therearemanyreasonsoftheglobalwarming,butitmainlycausedbyhumanactivities,Reason,2,.,6,Initialcausesoftemperaturechanges,Aerosolsandsoot,Greenhousegases,VariationsinEarthsorbit,Solaractivity,.,7,Greenhousegases,CO2,.,8,Aerosolsandsoot,.,9,Solaractivity,.,10,VariationsinEarthsorbit,.,11,Globalwarmingcausesallsortsofproblems,Problem,3,.,12,.,13,Extreme,weather,.,14,Sea,Level,Rise,19thcenturyriseattherateof0.10to0.15peronehundredmeters,Ice,islands,citydisappear,Bringdisastertothecoastalareas,.,15,Terrestrial（陆地）ecosystems,threatencoralreefs,fisheries,protectedspecies,andothernaturalresourcesofvaluetosociety,Effecttheflightofthemigratorybirds,affectparticularecosystemsreduceddiversityofecosystems,oceanecosystem,1,2,3,Ecologicalsystems,Air,.,16,effects,Long-term,AbruptclimatechangearesponsefromtheEarthscrusttherapidreleaseofmethaneandcarbondioxidefrompermafrostinjuryandlossoflifealargerisktoglobalandregionalfoodsecurityEconomicandInfrastructureloss,.,17,Lowcarbonlife,Solution,4,.,18,Mitigation,Adaptation,Climateengineering,Mitigationofclimatereducegreenhousegasemissions,orenhancethecapacityofcarbonsinkstoabsorbGHGsfromtheatmosphere,LocaladaptationeffortsEnhancingadaptivecapacityAgriculturalproductionMorespendingonirrigationWeathercontrolDammingglaciallakesGeoengineeringMigrationInsurance,so