字典翻译 问答 小学 英语 阅读理解.Globalwarmingistheprocessofearth'satmosphereheatingup.Overthelast100years,theaveragetemperatureofearth'satmospherehasgoneup1Fahrenheit.Theweatherhasnotchangedexactlythesamewayineveryareaofthe
问题标题:
阅读理解.Globalwarmingistheprocessofearth'satmosphereheatingup.Overthelast100years,theaveragetemperatureofearth'satmospherehasgoneup1Fahrenheit.Theweatherhasnotchangedexactlythesamewayineveryareaofthe
问题描述:

阅读理解. Globalwarmingistheprocessofearth'satmosphereheatingup.Overthelast100years,theaverage

temperatureofearth'satmospherehasgoneup1Fahrenheit.Theweatherhasnotchangedexactlythe

samewayineveryareaoftheplanet.Butscientiststhinkthattheriseinaveragetemperatureisalready

affectingtheearth'sclimate.

Manyscientistsnowbelievethatglobalwarmingiscausedbycuttingdowntrees,producingmore

trash,andpollutingtheenvironmentwhicharesomeofthereasonswhythetemperaturehasgoneup.

Manyscientistsbelievethatthebiggestcausesofglobalwarmingarenewhumantechnologiesthat

releasegreenhousegasesintotheatmosphere.

Thegreenhouseeffectisnotnew.Certaingasesintheatmosphere,likecarbondioxide,nitrousoxide

andmethane,makingithardforheatenergytogointospace.Inthepast,theclimatedidn'tchangemuch

becausenatureproducedjusttherightamountofgreenhousegasestodealwithit.

Today,mostscientistsareprettysurethattherisingtemperaturecan'tbeblamedonnature.Eversince

theindustrialrevolutioninthe1700s,humanshavereliedonmachinesfordailylife.Andmanyofthose

machinesgiveoffalotofgreenhousegases.Anincreaseinthereleaseofgreenhousegasesfromhuman

activitiesisthrowingnatureoffbalance.

Theclimateisaverycomplicatedthing,butmanyscientistsagreethattherisingatmospheric

temperaturehasalreadydamagedtheenvironment.Sheetsofice,calledglaciers,aremeltinginAntarcticaandotherpartsoftheglobe.Asglaciersbreakoffandmeltintotheoceans,theyareaddingwarmwater

totheoceansandcausingthesealeveltorise.

Overthepast100years,thesealevelhasrisen6-8inchesaroundtheworld.Thatmeanslandalong

thecoastsisbeginningtodisappearunderwater.Biggerandwarmeroceansarealsoaddingtoother

weatherproblemscausedbypollutionintheatmosphere.Someplaceshavereceivedmorerain,others

havehadbiggerstormsandafewareasintheworldhaveexperiencedunusualdrou

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