你所问的是:什么是温室效应?

　　答:Theso-calledgreenhouseeffectisshort-wavesolarradiationthroughtheatmosphereintotheground,andwarmingthegroundafterthelengthofradiationbeingreleasedintheatmospherebyabsorbingcarbondioxideandothersubstances,therebycreatingtheeffectofatmosphericwarming.Carbondioxideintheatmospherelikeathicklayerofglass,sothattheEarthhasbecomeabiggreenhouses.Itisestimatedthatifthereisnoatmosphere,theaveragesurfacetemperaturewilldropto-23℃,andtheactualaveragesurfacetemperatureof15℃,thismeansthatthegreenhouseeffectsothatthesurfacetemperatureincrease38℃.

　　Inadditiontocarbondioxide,thegreenhousegasesthathaveanimportantroleinthemethane,ozone,chlorofluorocarbons,suchasgasandwater.Withtherapidincreaseinpopulation,therapidindustrialdevelopment,intotheatmosphereofcarbondioxideinthecorrespondingincreasedalsoduetoalargenumberofforestwerefelled,theatmosphereshouldbeforestabsorptionofcarbondioxidehavenotbeenabsorbed,asagradualincreaseofcarbondioxide,thegreenhouseeffecthasbeenenhanced.Accordingtoanalysis,inthepast200years,carbondioxideconcentrationsincreased25percent,theEarthaveragetemperatureincreasedby0.5℃.Itisestimatedthatmiddleofthenextcentury,theEarth'ssurfacetemperaturewillriseanaverageof1.5-4.5℃,andinthehighlatitudesoftemperaturerisemore.

　　Theconsequencesofthegreenhouseeffectisveryserious.Firstofallthenaturalecologywillresultinmajorchanges.Desertificationwillbeexpanded,increasinglanderosion,forestretreattothepolarregions,severedroughtsandfloods,therainfallwillincreaseby7-11percentmoretemperatewinterwet,drysummer,more;willalsobecomemoretropicalwet,dryheatofthesub-tropicshavebecomemoreDrought,forcingtheoriginalre-adjustmentofwaterconservancyprojects.Coastalwillnolongerbeunderseriousthreat.Astemperaturesrise,thebipolaricewillmelt,sealevelrisemorethan1meter.Scientistsbelieveotherwise,becauseofwarming,causedseawatervolumeexpansion,thesealevelmayrise0.2-0.4meters.Nowathirdoftheworld'spopulationlivingincoastalareas,coastalareasisalsoverywell-developedindustrialandagriculturalareas,willincreasetheseafloodedmanycitiesandports.

　　Globalwarminghascausedtheconcernofpeoplearoundtheworld.November1988,theUnitedNationsGeneralAssemblyhasmadearesolution,pointingoutthatcarbondioxideandothergasesintheatmospherecontinuedtoincrease,maycauseglobalwarmingandsealevelrise,thusbringdisasterstomankind,andcalledontheinternationalcommunity"toprotectpresentandfuturegenerationsofmankindClimate"andefforts.Therefore,weinthedevelopmentofindustrialproduction,itisnecessarytoactivelycontrolairpollution,thestudyofcarbondioxideconvertedintoothersubstances,topreventmethane,chlorofluorocarbonsandothergasesspills.Second,wemustprotecttheexistingforests,toafforestation,thecarbondioxideintheatmospherethroughphotosynthesisinplantsintonutrients.Finally,weshouldalsousevariousmeanstoreducetheoverallconsumptionoffossilenergy,asfaraspossibleuseofnuclearenergy,solar,hydro,wind,toreducecarbondioxideemissions.