Climatechangeandalow-carbonlife_____________________theworldclimatehasbeenchanginginrecentyears.Manypeople_________thischange________gasessuchascarbondioxide.Animalsandhumansproducecarbondioxidewhentheyb___________.However,manyotherhumanactivitiesalso_________carbongases.Anytimesomethingisburnt,carbonisputintothea_____________.Carsandotherv_________burnpetrolintheirengines,andelectrical______________mostoftenburnfuelssuchascoalandoilinordertoproduceelectricity.____________________________________________________________________________________________________________(因此，…)Onethingwecanalldo_______________________is_____________________________.___________weproducecarbonwhenwebreathe,thecarbonweproduceinmuchlessthan________producedbyacar.Ofcourse,therearetimes________weneedtotravellongdistances,______________,public___________suchasbusesandtheundergroundisalwaysamuchbetterchoicethanaprivatecarorataxi.Ifyou________driveacar,itisnevergoodtotravelalone–youshouldfindotherpeopletotravelwithyou.Athome,youshoulduse_______________________.__________thelightsandanythingelseelectrical_________________.__________factoriesusealotofenergyandalsoletoffcarbongases,itisimportantto_________asmuchaspossible._______________,metalproductsandpaperproductsrequirealotofenergy______________,soyoushouldfindwaystousetheseagainwithoutthrowingthenaway.___________________,youcanplantatree,becausetrees___________thecarbondioxideintheairtoproduceoxygen.___________asmalltreeischeapandeasy,andtwod__________fromnow,whenyoulookat_________willhavebecomealargetree,youwillfindasenseofs__________________________thatyou_______________tohelpsolvetheproblemofclimatechange.
