Todaythequalityofournaturalenvironmenthasbecomeanimportantissue.Theworldpopulationisrisingsoquicklythattheworldhasbecometoocrowded.Weareusingupournaturalresourcesandatthesametimepollutingourenvironmentwithdangerouschemicals.Ifwecontinuetodothis,lifeonearthcannotsurvive.

　　ConcernedpeoplehavemadesomeproGREssinenvironmentalprotection.Governmentsofmanycountrieshaveestablishedlawstoprotecttheair,forestsandsearesourcesandtostopenvironmentalpollution.

　　Stillmoremeasuresshouldbetakentosolveenvironmentalproblems.Peopleshouldbefurthereducatedtorecognizetheimportanceoftheproblems,tousemodernmethodsofbirthcontrol,toconserve(保存）ournaturalresourcesandrecycle（再循环）ourproducts.Wearesurethatwecanhaveabetterandcleanerplaceinthefuture.