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1、....1．Oneoftheeffectsofglobalwarmingisthedestructionofmanyimportantecosystems.Changinganderraticclimateconditionswillputourecosystemstothetest,theincreaseincarbondioxidewillincreasetheproblem.Theevidenceisclearthatglobalwarmingandclimatechangeaffectsphysicalandbiologicalsystems.Therew
2、illbeeffectstoland,water,andlife.Alreadytoday,scientistsareseeingtheeffectsofglobalwarmingoncoralreefs,manyhavebeenbleachedandhavedied.Thisisduetowarmeroceanwaters,andtothefactthatsomespeciesofplantsandanimalsaresimplymigratingtobettersuitedgeographicalregionswherewatertemperaturesare
3、moresuitable.Meltingicesheetsarealsomakingsomeanimalsmigratetobetterregions.Thiseffectstheecosystemsinwhichtheseplantsandanimalslive.Severalclimatemodelshavebeenmadeandtheypredictmorefloods(bigfloods),drought,wildfires,oceanacidification,andtheeventualcollapseofmanyecosystemsthroughou
4、ttheworldbothonlandandatsea.Therehavebeenforecastsofthingslikefamine,war,andsocialunrest,inourdaysahead.Thesearethetypesofeffectsglobalwarmingcouldhaveonourplanet.2．Anotherimportanteffectthatglobalwarmingwillbringisthelossandendangermentofmanyspecies.Didyouknowthat30percentofallplanta
5、ndanimalspeciesaliveintheworldtodayareatriskofextinctionbytheyear2050ifaveragetemperaturesrisemorethan2to11.5degreesFahrenheit.Thesemassextinctionswillbeduetoalossofhabitatthroughdesertification,deforestation,andoceanwarming.Manyplantsandanimalswillalsobeaffectedbytheinabilitytoadaptt
6、oourclimatewarming.Somespecieswillsurvivethoughbecausetheywillmigratetootherpartsoftheworldwheretheycansurvive.Agoodexampleofthathappeningistheredfoxthathasalreadydoneit.TheredfoxusedtolivemainlyinNorthAmerica,buthasmigratednowtotheArctic.Peoplelikeyouandmearealsoindanger,peopleliving
7、incoastalareaswillbebadlyhitifsealevelsrise.Desertificationwillalsobeaproblemforhumans,foodmaybecomescarce.3．Oneverydisappointingeffectofglobalwarmingiswarandconflicts.Withadeclineintheamountsofqualityfood,water,andland,itcouldbringanincreaseinglobalsecuritythreats,andwar.Takethecount
8、rySud
