全球变暖英文论文

Thereisoneofthemostsensitiveglobalclimateissuesforyears,whichisglobalwarming.Ingeneral,weknowthattheoriginofglobalwarmingistheemissionofcarbondioxide.Itwasverifiedthattherelationshipbetweencarbondioxideandtemperature:whenthereismorecarbondioxidethetemperaturegetswarmer.Thistopicshouldbediscussedundercurrentsituationtoadvocatepeopleconcerningwiththissevereenvironmentalissue.Meanwhile,peopleshouldconsiderhowtoreducetheemissionofcarbondioxideandtakesomeactionstostopglobalwarming.Whatcausedglobalwarming?Itiscausedbyseveralfactors.First,populationexplosionisoneofthemainfactorsofglobalwarming;italsothreatensthebalancebetweenmanandnature.Second,atmosphericpollutionisbeingontherise,andithasalreadybecomeaninternationalmajorproblem.Itisalsothebasicproblemofglobalwarming.Third,marineecologyandenvironmenttookaturnfortheworse.Thatmayleadtothedamageoffreshwaterresouces.Forth,erosion,salinization,anddesertificationoflandmaketheecologicalenvironmentdeteriorated,andfloodandsandstormmayhappenmorefrequently.Fifth,theforestresourcesaresharplydecreasedbynaturalchangesandhumanactions.Sixth,acidraincandestroytheforests,acidatelakes,andendangeranimals.Seventh,waterpollutiondestroyedthebalancebetweenthedemandandsupplyoffreshwater.Last,toxicchemicalwasteshavethreatsontheecologicalenvironmentontheearth’surface.Thesecondeffectofglobalwarmingistomakemanyanimalsandplantsendangered.Considerabledataverifiedthatmorethan200nativeplantspeciesintheUnitedStateshavegoneextinct;morethan760plantspeciesintheU.S.arefederallylistedasendangeredorthreatenedand20percentofournativeplantspeciesareindeclineandonaconservationwatchlist(Keppler).Assameasplants,therearealsomanyendangeredanimalsgeneratingwhichareimputabletoglobalwarming,suchasPolarbears.SomescientistsbelievethePolarbearsinAlaskawouldbecomeextinctin50years'time(Keppler).Thesedatawarnusthatwecallforpayingeffortonsurvivalofspecies.Thelastnegativeeffectofglobalwarmingismorerelatedtohumankind.Globalwarmingwillalsothreatenhumansociety.Itwillcausetheinfectiousdiseasestooeasytospreadandinfect.Bacteriawillhardtocontrolthroughfastbreederreactor,andthreatourlives.Thehousewillbeerodedbydestructiveinsectsanditmayleadavagrantlifeeventually.What’smore,globalwarmingimpedesoutdooractivities.Someoutsideentertainmentsportssuchasskiingandsnowboardwillbeinfluencedbyicemeltingandclimatechange.However,isthereanypositiveeffect?Yes,thereis.Thewidespreadknowledgeofglobalwarminghasalreadywakedtheconsciousnessofresidentsthroughouttheworld.Oneofthemajorconcernsinconservationistheuseofplasticbags.Plasticbagsaregivenawaytoofreelybymanystores.Theamountofwasteisalarmingaswearereachingtonsofwasteeachyear!Plasticwasteispollutingtheenvironmentandweneedtoaddressitnow.Thereareseveralthingsbeingdonetobringplasticrecyclingtotheforefrontwheretheseplasticbagsareconcerned.Companieshavestartedtotakestepstoreducethenumberofplasticbagsbeengivenawayintheirdailyoperations.SomeSolutionsSomecompaniesplacerecyclingbinsattheirstores.Whencustomerscomebacktothestoretheycanbringtheirbagsandrecyclethemeasily.However,thenumberofbagsleavingthestoreandthenumberreturningarenotquiteequalwithfarmoregoingoutthencomingback.Therearestoresthatevenremovetheuseofbags.Thestoreshavestartedtoencouragetheuseofclothshoppingbagsandsomestoresaskthecustomerstopurchasetheirownbags.Someconsumershavealreadyjumpedontheideaandbringtheirownbagswhentheygoshopping.Inconclusion,globalwarminghashazardtocausesealevelriseandclimatechange:itleadstotheextinctionofplantsandanimals,whilehinderspeople’sdailylifeandthreatenshumansociety.Italsohasfewpositiveeffectswhichleadingpeopletofocusonreuse,reduce,andrecycle.Basedonthesenegativeseffectsofglobalwarming,Istressedthatalleviatingtheeffectsofglobalwarmingisnotasimpletask.Itcallsforglobalconcentrationthateverycountrytakesactiontopreservetheearthecosystem.Thisessayconsequentlyaddressedpeoplerequiringnurturingtheconsciousnesstoconservethesources,enlighteningpeopletopreservetheplanet.Ifpeoplecancomprehendthedetailsofglobalwarmingwell,theywillrealizethesignificancetoprotecttheenvironmentandwhatweshoulddoinourdailylife.Themoreattentionwepaid,thebetterworldwillbe.