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1、TheFightAgainstGlobalWarmingSinceoursocietyhasenteredintoanewcentury,atthesametime,wehumanbeingsalsomeetwithadilemma.Canwedevelopeconomyatthecostofenvironment?Ontheonehand,Duetotheeconomicdevelopment,ithasprovidednumerousjobopportunities,whichhasalsoimprovedlivingconditionsandincreasesgovernmentrev
2、enues,However,ontheotherhand,thepresentseriousenvironmentalproblemsarelargelycausedbyrapiddevelopmentofeconomic.Heavyuseofenergytoenhancethehumanmaterial,whichcausedunexpecteddisasters,andacidraindamagealmostallovertheworldgreatplantsandsoon.Then,letmetakeglobalwarmingforexample.Whatisglobalwarming
3、?GlobalwarmingistheincreaseintheaveragetemperatureofEarth'snear-surfaceairandoceanssincethemid-20thcenturyanditsprojectedcontinuation.Accordingtothe2007FourthAssessmentReportbytheIntergovernmentalPanelonClimateChange,globalsurfacetemperatureincreased0.74 ± 0.18 °C(1.33 ± 0.32 °F)duringthe20thcentur
4、y.Innearly100years,theaverageglobaltemperaturegoesthroughfourfluctuations:cold,warm,coldagain,andwarmagain.After1980s,thetemperaturewasascendingobviously.Whatcausedglobalwarming?Itiscausedbyseveralfactors.First,thewideuseofcoalandfuel,whichcausestheemissionofcarbondioxide,themaingasesthatleadtogree
5、nhouseeffect.Second,populationexplosionisoneofthemainfactorsofglobalwarming;italsothreatensthebalancebetweenmanandnature.Third,atmosphericpollutionisbeingontherise,andithasalreadybecomeaninternationalmajorproblem.Itisalsothebasicproblemofglobalwarming.Forth,marineecologyandenvironmenttookaturnforth
6、eworse.Thatmayleadtothedamageoffreshwaterresources.Fifth,theforestresourcesaresharplydecreasedbynaturalchangesandhumanactions. Whatarethenegativeeffectscausedbyglobalwarming?Thisseriousenvironmentalproblemgeneratesamountofdestructiveeffectstotheentireplanet:icemelting,climatechange,animalsandplants
7、’extinction,andthreatofhumansociety.Primarily,asthetemperatureincreases,icemeltingisregardasthemostintractableissue.Meltingoficeraisesthesealevel.Inaddition,asaresultoficemelting,landscapealsotransforms.Mea
