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，ifweeducatepeopletothinkabouttheproblemsweshallhaveabetterandcleanerplanetinthefuture。
Environmentalproblemsarebeingmoreandmoreseriousallovertheworld。Forexample，carshavemadetheairunhealthyforpeopletobreatheandpoisonousgasisgivenoffbyfactories。Treesonthehillshavebeencutdownandwastewaterisbeingpouredcontinuouslyintorivers。Furthermore，whereverwegotoday，wecanfindrubbishcarelesslydisposed。Pollutionis，infact，threateningourexistence。
Theearthisourhomeandwehavethedutytotakecareofitforourselvesandforourlatergenerations。Fortunately，moreandmorepeoplehaverealizedtheseproblems。Measureshavebeentakentocopewiththeseproblemsbythegovernment。Lawshavebeenpassedtostoppollution。Ihopetheproblemwillbesolvedinthenearfutureandourhomewillbeebetterandbetter。
Throughouthistorymanhaschangedhisphysicalenvironmentinordertoimprovehiswayoflife。Withthetoolsoftechnologyhehasalteredmanyphysicalfeaturesoftheearth。Hehastransformedwoodlandsandprairiesintofarmsandmadelakesandreserviorsoutofriversforirrigationpurposesorhydroelectricpower。Manhasalsomodifiedthefaceoftheearthbydrainingmarshesandcuttingthroughmountainstobuildroadsandrailways。
However，man'schangestothephysicalenvironmenthavenotalwayshadbeneficialresults。Today，pollutionoftheairandwaterisanincreasingdangertothehealthoftheplanet。Eachdaythousandsoftonsofgaseseoutoftheexhaustsofmotorvehicles。Smokefromfactoriespollutestheairofindustrializedareasandthesurroundingareasofthecountryside。Thepollutionofwaterisequallyharmful。Thewholeecologicalbalanceoftheseaisbeingchangedandindustrialwasteshavealreadymademanyriverslifeless。
Nowenvironmentalprotectionismorepressingthaneverbefore。Asweknow，massivedestructionofenvironmenthasbroughtaboutnegativeeffectsandevenposesagreatthreattoman'sexistence。Indifferencetotheseproblemswillmeanmittingsuicide。Therefore，effectivemeasuresshouldbetakenandlawspassedtoconserveenvironment。Otherwise，maniscertaintosufferfromtheseriousconsequencescausedbythislackofcareforhislivingsurroundings。
AsunnySunday，usuallyeverydayandsleepuntilthesunfather-dryingbottomsclimbtogetupearlyandgetupinred，wakeupmymother。Drowsilymotherslowlysaid:"Todaywhatthesection，fromWhysoearly"LittleRedsaidexcitedly:"Mom，donotinstallconfused，yousaidthattodaytookmetothepark!"
Cametopark，motherandsonweretwobeautifulsceneryattract:kids，somekite-flying，andsomeshootingwhileplayingballredbumpercars，whilealsoplayingslipperyslides，playedwithenjoyingthemselves，wassweatingprofusely。
LittleRedhobbleddowntoholdingmother'shandwhilewalkingwhilesinging。Suddenly，abananapeel，aredblockoftheavenue，littleredslipbananaskinremindedonceagaintoseeifthebananapeeltoherprotest，thendonotfightagas，thefootkickedthebananapeel。Momsaw，asifawareofhermindlike，anddidnotcriticizeher，shejustpulledthebananaskinsidenexttoherwhilesayingwithgreatearnestness:"Iknowyouhavebeenslippingonbananapeel，veryangry，butyoushouldFromtheperspectiveofothersthinkthatifyousomehowaccidentallysteppedonabananapeelhowtodoredlistenedto，veryashamed，thebananapeelthrownintothebin。
LittleRedlookedatthemove，mymothersmiled。
Yesah!Woulditnoteveryoneshouldbeprotected
Withthedevelopmentofoursociety，energyintheworldbeesmoreandmorelimited，soitisquiteimportantforustosaveenergyandtoprotectourenvironment。Asastudent，therearealotofmethodswecandotosaveenergyathome。Forexample，first，wecanturnoffthelightaswellasotherapplianceswhenwearenotusingthem。Second，recyclethewastewater，paperandotherwastesothatwecanreusethem。What'smore，itissuggestedtousepublictransportationmoreinsteadofprivatecars.
Aboveall，everyonecanmakeagreatcontributiontoourenvironment。IhopeIcanlearnmoretodevelopnewandclearenergy，likeenergyfromthewindandsolar.