空气污染初中英语作文

Nearlyallofthisenergyisproducedbyburningfuels.Nearlyallofthecountriesaretryinghardtopreventandcontrolairpollution.Peoplewillcontinuallyfindnewwaystocontrolpollution.Inthemeantime.Automobile.Theburningproduceswastes,engineerstrytodesignandlocatenewpowerplantstodominimumdamagetotheenvironment.Thereindeedseemstobenoendtotasksthatenvironmentalistswillberequiredtodo.However;worldAirpollutionisoneofthemajorproblemsofthemodernworld,too.Also.Scientistsarefindingwaystostopairpollutionespeciallyinbigindustrialareasanddensely-populatedcities,someofwhichremainintheair;clean,trains.Theyarestudyingnewwaysofgeneratingelectricitythatmaybelessdamagingtotheenvironment.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations,manypowerplantsarebeingmodernizedtogiveofflesspollutedmaterial,causingairpollution,planesandbussesneedenergy,itmaybethatwestillhavealongbeforewehavea　　空气污染对气候的影响:theimpactofairpollutiononclimateairpollutionisnowdiscussinghowtheyaffectclimate.themostseriousairpollutionisgeneratedbyburning:theburningofsulfurincoalandoil,willproducesparseoxides;airtoparticipateinhigh-temperaturereaction,willproducenitrogenoxides;willproduceinpletebustionofhydrocarbonsandcarbonmonoxide;whilebustionofpyrolysisgasoline,butalsoreleaselead;.......however,eventhecleanestfuelbustionwillproducecarbondioxide.ofcourse,theanimal'sbreathingprocess,thesamereleasecarbondioxide,andthatofcarbondioxideintotheatmosphere,about80%camefrombreathing,only20%fromfuelbustion.however,theburningdestroyedthenaturalbalanceofcarbondioxide,sothattheconcentrationofatmosphericcarbondioxideincreasedyearbyyear,whichmaycausethegreenhouseeffect,sothattheearth'srisingtemperatures.turbiditycurrentgrowthrateoftheearth,orevengreaterthantheconcentrationofbustioncausedbyco2growthrate,therefore,atmosphericturbiditywillinfluencetheearth'sclimatecannotbeignored.theincreaseinturbidityovertheworldtherearemanyreasons,suchasfuelconsumptionincrease,fuelincreaseinagriculturalmachinery,mechanizedfarming,andsoanincreaseinyoungearth.inadditiontothegreenhouseeffectandatmosphericturbiditymayaffecttheearth'sclimate,otherfactorssuchassunspotactivity,etc.,tosomeextentalsoaffecttheearth'sclimate.sunspotactivitysince1900areconstantlyincreasing.asthesunspotcanincreasetheamountofsolarradiationandthuscauserisingtemperatures.theairpollutionontheearth'sclimate,theyarenotscientificallyconclusiveevidenceonthe.mostofwasaboldex海缉奋垦莪旧烽驯甫沫trapolation.　　Oncemandidnothavetothinkabouttheprotectionofhisenvironment.Therewerefewpeopleontheearth,andnaturalresourcesseemedtobeunlimited.　　Todaythingsaredifferent.Theworldhasbeetoocrowded.Weareusingupournaturalresources,andpollutingourenvironmentwithdangerouschemicals.Ifwecontinuetodothis,humanlifeonearthwillnotsurvive.　　Werealizethatiftoomanyfisharetakenfromthesea,therewillsoonbenoneleft.Yet,withmodernfishingmethods,moreandmorefisharecaught.Weknowthatiftoomanytreesarecutdown,forestswilldisappear.Yet,wecontinuetousepowerfulmachinestocutdown...　Oncemandidnothavetothinkabouttheprotectionofhisenvironment.Therewerefewpeopleontheearth,andnaturalresourcesseemedtobeunlimited.　　Todaythingsaredifferent.Theworldhasbeetoocrowded.Weareusingupournaturalresources,andpollutingourenvironmentwithdangerouschemicals.Ifwecontinuetodothis,humanlifeonearthwillnotsurvive.　　Werealizethatiftoomanyfisharetakenfromthesea,therewillsoonbenoneleft.Yet,withmodernfishingmethods,moreandmorefisharecaught.Weknowthatiftoomanytreesarecutdown,forestswilldisappear.Yet,wecontinuetousepowerfulmachinestocutdownmoreandmoretrees.Weseethatifriversarepollutedwithwasteproducts,wewilldie.Yet,wasteproductsare　stillputintorivers.　　Weknowthatifthepopulationcontinuestoriseatthepresentrate,inafewyears,therewon'tbeenoughfood.Whatcanwedotosolvetheseproblems?　　Ifweeatmorevegetablesandlessmeat,therewillbemorefoodavailable.Landforcropsfeedsfivetimesmorepeoplethanlandwhereanimalsarekept.　　Ournaturalresourceswilllastlongerifwelearntorecyciethem.　　Theworldpopulationwillnotrisesoquicklyifpeopleusemodernmethodsofbirthcontrol.　　Finally,ifweeducatepeopletothinkabouttheproblemsweshallhaveabetterandcleanerplainthefuture.