英语作文空气污染
Airpollutionisoneofthemajorproblemsofthemodernworld.Agreatdealofenergyisneededtorunthefactoriesofmodernindustrialnations.Automobile,trains,planesandbussesneedenergy,too.Nearlyallofthisenergyisproducedbyburningfuels.Theburningproduceswastes,someofwhichremainintheair,causingairpollution.
Scientistsarefindingwaystostopairpollutionespeciallyinbigindustrialareasanddensely-populatedcities.Theyarestudyingnewwaysofgeneratingelectricitythatmaybelessdamagingtotheenvironment.Inthemeantime,manypowerplantsarebeingmodernizedtogiveofflesspollutedmaterial.Also,engineerstrytodesignandlocatenewpowerplantstodominimumdamagetotheenvironment.
However,itmaybethatwestillhavealongwaytogobeforewehavea"clean"world.Nearlyallofthecountriesaretryinghardtopreventandcontrolairpollution.Thereindeedseemstobenoendtotasksthatenvironmentalistswillberequiredtodo.Peoplewillcontinuallyfindnewwaystocontrolpollution.
Pollutionisbecomingmoreandmoreseriousallovertheworld.Asisshowninthecartoon,twocarsaregivingoffwastegasandthreepeoplearetryingtoavoidbreathinginthepoisonousgasbymaskingtheirfacewiththeirhands.Thepoisonousgassentoffbyfactories,domesticappliancesandautomobileshasmadetheairunhealthyforpeopletobreathe.
Thereisnodenyingthatautomobilesareindicationsofcivilization,progressanddevelopment;nevertheless,automobilescausetheseriousproblemofairpollution.Scientistshavewarnedthatunlesseffectivemeasuresaretaken,theproblemofpollutionwilleventuallygetoutofhand.Actually,peopleareshowingarealconcernovertheproblem.Forexample,thereisanincreasinglyloudvoicefromthepublicforfirmactionagainstpollutionfromautomobiles.
Indeed,theearthisourhomeandwehavethedutytotakecareofitforourselvesandforourdescendants.Inmyopinion,weshouldworkoutconcretesolutionstotheproblemofpollutionfrompoisonousgasgivenoffbyautomobiles.Forexample,theautomobilesshouldbeequippedwithadevicewhichcandisposeofwastegassoastopreventitfrompollutingair.Onlyinthiswaycanwereallysolvetheproblemofairpollutioncausedbyautomobiles.