氣溫上升加速冰川溶解英國氣候?qū)＜艺步鹚贡硎菊n件

Weather&Climate:

IstheWorld’sClimateChanging?Weather&Climate:

IstheWorlGLOBALTEMPERATUREworld’saveragetemperature(1860-2000):15oCtrend:increasingworld’saveragetemperaturewithvariationsincreasesatanincreasingrateGLOBALTEMPERATUREworld’saverTrenddescriptionIncrease/decrease(slowly,gradually,steadily)Increase/decrease(rapidly,sharply)Variations/fluctuations(=upsanddowns)stableTrenddescriptionIncrease/deGREENHOUSEEFFECTGREENHOUSEEFFECTGREENHOUSEEFFECTGREENHOUSEEFFECTGREENHOUSEEFFECTanaturalprocessgreenhousegasestrapheatkeeptheearthwarmBUTWHATISTHEPRESENTSITUATION?GREENHOUSEEFFECTanaturalproGREENHOUSEGASESmoregreenhousegasesduetoincreasing:urbanactivitiesindustrialactivitiesenhancedGreenhouseEffectGREENHOUSEGASESmoregreenhousGREENHOUSEGASES(CO2)Carbondioxide76%GREENHOUSEGASES(CO2)Carbonduseoffossilfuelsin:powerplantsindustrialactivitiestransportationdeforestationburningoftreesreleaseCO2lesstreesabsorbCO2throughphotosynthesisGREENHOUSEGASES(CO2)useoffossilfuelsin:GREENHOGREENHOUSEGASES(CH4)Methane13%GREENHOUSEGASES(CH4)MethaneagriculturalactivitieswetricegrowingGREENHOUSEGASES(CH4)cattlerearingburningoforganicwasteagriculturalactivitiesGREENHOGREENHOUSEGASES(CFCs)CFCs5%GREENHOUSEGASES(CFCs)CFCsrisinglivingstandards:coolantsinrefrigerators&airconditionersGREENHOUSEGASES(CFCs)foamsaerosolsrisinglivingstandards:GREENHGREENHOUSEGASES(NOX)Nitrousoxide6%GREENHOUSEGASES(NOX)Nitrousfrom:carfumesGREENHOUSEGASES(NOX)factoriesproducingnylonfarmlandsusingnitrogenfertilizersfrom:GREENHOUSEGASES(NOX)facEFFECTSOFGLOBALWARMINGEFFECTSOFGLOBALWARMINGCLIMATICCHANGESTemperaturePolarzonePolarzoneTemperatezoneTemperatezoneTropicalzoneTemperaturegoesup2oCTropicalareaswillextend

.polewardsPolarzonePolarzoneTropicalzoneTemperatezoneTemperatezoneTemperateareaswillalsoshift___________.polewardsCLIMATICCHANGESTemperaturePolequatorialandtropicalregions(hot&warm)expandtemperateandpolarregions(cold)contractCLIMATICCHANGESequatorialandtropicalregionChangingprecipitationpatternPrecipitationSnow______Morewaterisreleased_______precipitation_________evaporationrateHighertemperatureTemperatureincreases.Relativehumidity___________.________precipitation__________mayoccurHigherMoremeltsdecreasesLessDroughtMoreprecipitationorless?ChangingprecipitationpatterncoastalregionswetterinteriorregionsdrierCLIMATICCHANGEScoastalregionsCLIMATICCHANGEExtinctionofwildlifeastheirhabitatsaredestroyedCLIMATICCHANGESExtinctionofwildlifeastheidueto:meltingoficethermalexpansionofseawaterRISEINSEA-LEVELdueto:RISEINSEA-LEVEL全球暖化會導(dǎo)致兩情發(fā)生一是海水受熱膨脹令水位上升﹔二是冰川和格陵蘭及南極洲上的冰塊溶解使海洋水分增加。預(yù)期到二一零零年時海平面會上升十五到九十五公分。

全球暖化會導(dǎo)致兩情發(fā)生一是海水氣溫上升加速冰川溶解英國氣候?qū)＜艺步鹚贡硎京o估計(jì)全球氣溫在未來一百年將會上升二點(diǎn)五至四點(diǎn)四攝氏度﹐冰川和冰山會加速溶化﹐令海洋水位上升至少十八至十九吋。孟加拉政府表示﹐若孟加拉灣的水位上升三尺三吋﹐孟加拉便會有百分之十七點(diǎn)五的土地被水淹﹐令一千七百萬人無家可歸。

氣溫上升加速冰川溶解英國氣候?qū)＜?/p>

【明報專訊】全球暖化已令太平洋小島居民遭殃。英國《獨(dú)立報》報道﹐太平洋島國巴布亞新畿內(nèi)亞政府﹐前天向國內(nèi)約克公爵群島一千名居民宣布﹐由於全球暖化令水位上升﹐他們將要遷徙至附近地勢較高的島嶼﹐令他們成為全球首批因全球暖化問題而被迫遷離家園的居民。

全球暖化水位升太平洋島民「逃亡」

【明報專訊】全球暖化已令太causes:coastalfloodingRISEINSEA-LEVELcauses:RISEINSEA-LEVELcauses:drowningofislands,e.g.MaldivesRISEINSEA-LEVELcauses:RISEINSEA-LEVELMORE:typhoonsfloodingsdroughtpoorharvestfaminelossoflifeandpropertyMOREHAZARDSMORE:MOREHAZARDSMOREHAZARDS星島日報

(2/8/2005)美國一個研究發(fā)現(xiàn)，全球暖化使颶風(fēng)增強(qiáng)。科學(xué)家表示這個發(fā)現(xiàn)令人驚訝和擔(dān)憂的，因?yàn)闇厥倚?yīng)已經(jīng)影響風(fēng)暴。但這個研究並不表示，全球暖化會衍生更多颶風(fēng)和颱風(fēng)。麻省理工學(xué)院氣候?qū)W家伊曼紐爾分析從風(fēng)暴收集得來的數(shù)據(jù)，首次發(fā)現(xiàn)自一九七○年以來，在大西洋和太平洋形成的主要風(fēng)暴的持久度和強(qiáng)度增加了百分之五十。這個趨勢與海洋表面平均氣溫上升有密切關(guān)係，同時亦與全球平均氣溫上升相符。在這個研究以前，大部分的研究人員都認(rèn)為，全球暖化對強(qiáng)大的颶風(fēng)的影響微不足道，難以量度。大部分的預(yù)測指在二○五○年以前，氣候的轉(zhuǎn)變都不會對熱帶風(fēng)暴有重大影響。MOREHAZARDS星島日報(2/8/2005)溫室效應(yīng)港颱風(fēng)增【明報專訊】地勢較高的香港被海水淹沒的機(jī)會雖然較低﹐但溫室效應(yīng)對本港亦有莫大影響。環(huán)保團(tuán)體「綠色和平」策劃幹事林孝建表示﹐溫室效應(yīng)為本港帶來更多颱風(fēng)。兩年前﹐曾有颱風(fēng)早於四月吹襲本港﹐今年則踏入十一月後﹐也本港也受颱風(fēng)威脅﹐正是厄爾尼諾現(xiàn)象加溫室效應(yīng)帶來的影響。

溫室效應(yīng)港颱風(fēng)增【明報專訊】地勢較高的heatwavesHEALTHPROBLEMheatwavesHEALTHPROBLEMHEALTHPROBLEMspreadofdiseases,e.g.malariaHEALTHPROBLEMspreadofdiseasSOLUTIONSSUSTAINABLEDEVELOPMENTPOLICYEconomyEnvironmentSocietySustainabledevelopmentlongtermdevelopmentpolicylookaftertheeconomic,social&environmentalneedsofthepresent&futuregenerationsSOLUTIONSSUSTAINABLEDEVELOPMESOLUTIONSDeveloprenewable

&pollution-freepowerresourceslimittheproductionwithCFCsLimitthecuttingoftreesPlantmoretreesenergy-savingelectricalappliances&machineryReplacefossilfuelswithHEP,windpowerSOLUTIONSDeveloprenewablelimWhatisNeeded?WhatisNeeded?INTERNATIONALCOOPERATIONINTERNATIONALCOOPERATIONKyotoProtocolINTERNATIONALCOOPERATIONKyotoProtocolINTERNATIONALCOINTERNATIONALCOOPERATIONINTERNATIONALCOOPERATIONINTERNATIONALCOOPERATIONKyotoProtocolgoesintoeffecttoday

Wednesday,Feb16,2005TheKyotoProtocol,whichhopestoslowdownglobalwarming,goesintoeffecttodaywithmostoftheindustrializedworldcommittedtocutting

greenhousegasemissions.Thetreatyseeksfortheindustrialworldasawholetoslashitsgreenhousegasemissionby5.2percentby2012,withtargetssetaccordingtoeachcountry'spollutionlevel.Atotalof141countrieshavesignedthetreatyBUT…INTERNATIONALCOOPERATIONKyotoINTERNATIONALCOOPERATIONKyotoProtocolgoesintoeffecttoday

…nottheUSorAustralia,whichsaythatKyoto'sburdentotheireconomieswouldbetoogreat.GrowingdevelopingcountriesChinaandIndiaarealsooutsidetheframework.Maathai,anecologistandKenya'sdeputyenvironmentminister,saidthattheKyotoprotocolwouldrequirenotjusteffortsfromgovernmentsandbusinesses,butalsoachangeinthewaypeoplelive."Oneofthereasonswhysomeofthecountriesdon'twanttosupporttheKyotoProtocolisexactlybecausetheydon'twanttoreducetheiroverconsumptivelifepattern,"saidMaathai.ButevenforcountriesthathavesignedontoKyoto,meetingthegoalscouldbedifficult.INTERNATIONALCOOPERATIONKyotoINTERNATIONALCOOPERATIONAsia-PacificPartnershiponCleanDevelopmentandClimate(SCMP29/7/2005)TheKyotoProtocol,whichcameintoeffectthisyear,isfarfromenoughtocombatglobalwarming.Butitwouldhavebeenamoreconvincingstartift