温室效应英语演讲稿

第页共页温室效应英语演讲稿温室效应英语演讲稿Thereislittledoubtthattheplaiswarming.Overthelastcentury,theplastemperaturehasrisenbyaround1degreefahrenheit(0.6ofadegreecelsius).Thewarmestsincethemid1800swasthe1990s.Thehottestyearsrecordedwere1997,1998,2023,2023,2023.Sonowweknowwhatsomeofthecausesareforglobalwarming,howcanweasindividualsdoourparttohelpsavethepla?Firstly,plantatree.Thiscouldbeeasierthanitsounds.Joinorhelpoutalocalwildlifegroupandasktoplantatree.Trees,whenfullygrown,willhelpkeeptheplacooler.Onthesamepoint,youcouldprotestagainstthedemolitionoftherainforests.Thisisthesameprinciple,weneedthetreestocoolourplaandyettheyarechoppingthemdowntocreateroadsorhomes.Somethingassi-mp-leaswalkinginsteadoftakingthecarwillhelpreducepollution.Aswellasstoppingpollution,youaregivingyourselfexercise,somethingimportantforourbodies.Sothenexttimeyougetintoyourcar,oryourmotorbike,think-doIhavetomakethisjourneybyvehicleorcanIwalk?Whenyouareathome,andyourgettingalittlecold.Putajumperonanddonotadjusttheheating.Theextraheatproducedbyourhomesalsoaffectsthepla.Sotrywearinganextralayerinwinter.Ifpossible,buyyourfruitandvegetablesfromlocalsuppliers.Andtrytoavoidimportedgoods.Themoreforeignfoodthatweimportthemorepollutionfromaeroplanesandboatsitwillcreate.Keepingtothespeedlimitcanalsohelptheenviro____ent.Themoreyouspeedthemorepetrolyouaregoingtouse,ma-ki-ngthepollutionhigher.Also,SUVsmakeaboutsixtimestheirownweightinCO2eachyear.Asmallefficientdieselcarcoveringthesamedistancenotonlyusesmuchlessfuel;itmakestwothirdsless.Ifpossibleusesolarenergy,afterallitisfree;allyouneedtobuyistheequipment.Youcangetmuchofyourhotwaterandheatingfromthesunandevengenerateelectricity.Reduce,reuseandrecycle.Onlybuywhatyouneed;dontstockthecupboardswiththingsyoumayormaynotuse.Reusewhateveryoucan,likecontainersandpa-pe-r,andrecyclewhatyoucannotreuse.Itreallyisassi-mp-leasthat.Finallyturningoffunusedsourcesofpowersuchastelevisionsandheaterswillhelptheenviro____ent,aswellassaveyoumoney.Ifeverybodystucktotheserules,wewouldbedoingagreatthingbyprotectingtheearth.SopleasetakeintoconsiderationwhatIhavesaid,andtrytodoyourpart.Afterall,itwillbeournextgenerationthatwillfeeltheeffects.温室效应英语演讲稿[篇2]accordingtothenationalacademyofsciences,theearth'ssurf-acetemperaturehasrisenbyabout1degreefahrenheitinthepastcentury,withacceleratedwarmingduringthepasttwodecades.thereisnewandstrongerevidencethatmostofthewarmingoverthelast50yearsisattributabletohuman#url#humanactivitieshavealteredthechemicalpositionoftheatmospherethroughthebuildupofgreenhousegases–primarilycarbondioxide,methane,andnitrousoxide.theheat-trappingpropertyofthesegasesisundisputedalthoughuncertaintiesexistaboutexactlyhowearth’sclimaterespondstothem.energyfromthesundrivestheearth'sweatherandclimate,andheatstheearth'ssurf-ace;inturn,theearthradiatesenergybackintospace.atmosphericgreenhousegases,suchaswatervapor,carbondioxide,trapsomeoftheoutgoingenergy,retainingheatsomewhatliketheglasspanelsofagreenhouse.withoutthisnatural"greenhouseeffect,"temperatureswouldbemuchlowerthantheyarenow,andlifeasknowntodaywouldnotbepossible.instead,thankstogreenhousegases,theearth'saveragetemperatureisamorehospitable60°#url#however,problemsmayarisewhentheatmosphericconcentrationofgreenhousegasesincreases.once,allclimatechangesoccurrednaturally.however,duringtheindustrialrevolution,webeganalteringourclimateandenviro____entthroughchangingagriculturalandindustrialpractices.beforetheindustrialrevolution,humanactivityreleasedveryfewgasesintotheatmosphere,butnowthroughpopulationgrowth,fossilfuelburning,anddeforestation,weareaffectingthemixtureofgasesintheatmosphere.carbondioxideisreleasedtotheatmospherewhensolidwaste,fossilfuelandwoodproductsareburned.methaneisemittedduringtheproductionandtransportofcoal,naturalgas,andoil.methaneemissionsalsoresultfromthedepositionoforganicwastesinmunicipalsolidwastelandfills,andtheraisingoflivestock.nitrousoxideisemittedduringagriculturalandindustrialactivities,aswellasduringbustionofsolidwasteandfossilfuels.risingglobaltemperaturesareexpectedtoraisesealevel,andchangeprecipitationandotherlocalclimateconditions.changingregionalclimatecouldalterforests,cropyields,andwatersupplies.itcouldalsoaffecthumanhealth,animals,andmanytypesofecosystemsanddesertsmayexpandintoexistingrangelands.unlessweactnow,ourchildrenwillinheritahotterworld,dirtierairandwater,moreseverefloodsanddroughts,andmorewildfires.butsolutionsareinsight.weknowwheremostheat-trappinggasesefrom:powerplantsandvehicles.andweknowhowtocurbtheiremissions:modernte