Pollutionhasbeenaseriousproblemforacertaintimearoundtheworld.Therearemanycausesforit.Transportationisthemainfactorofpollution.Whenthewastegasfromcarsisreleased,theairispolluted.Peoplebreathinginthepollutedaircandeveloprespiratorydisease.Anotherfactoristhatpeoplethrowtheirgarbageeverywhere.Allkindsofgarbagenotonlyspoilthesplendidenvironment,butalsocauseenvironmentalpollution.What'smore,industrialpollutionalsodeservesourattention.Wastewaterfromfactoriesispouredintoriversandthiscauseswaterpollution.Asaconsequence,thegreenhouseeffectbecomesaproblemwhichneedsourimmediatecautionandhowtosolveisurgentallovertheworld.Atpresent,somemeasureshavebeentakentoprevernt.Forexample,peopleclassifythegarbageandsomeisrecycledafterbeingcollected.Peoplearealsoencouragedtousepaperproductsinsteadofplasticproductsbecauseweknowthatourlivingconditionwillbeworseifwekeepignoringthisproblem.AndIbelievewecanpreventpollutionifeveryonemakestheefforts

　　戴铧南练履镇桐玮飙质抗赳顿蜻烜稽池胄径纨师

　　非常感谢你的帮助，但是你发的好像是有关污染的，不是航海旅行的~