全球变暖英文PPT课件

.,1,keywords,methanemi:en甲烷，沼气;甲烷greenhousegases温室气体shiftingecosystems改变生态系统acidificationsdfken使发酸，酸化，成酸性;变酸;airconditioning空调ruminantru:mnntn.反刍动物;adj.反刍的;沉思默想的;,.,2,question,Areyoumissyourchildhood？Doyourememberwhenthelasttimeyousawtheclearwater?Whatdoyouwanttosavetheonlyearth?,.,3,Whyisitsocoldthiswinter？,.,4,whatdoyouthinkofthecold?,IthinkthemostimportantisthefactisGlobalwarming全球变暖影响了正常的洋流流动，从而使西伯利亚高压强盛，以致今年冬天寒冷较为异常。,Toolittleclothes.,.,5,Globalwarming,.,6,whatisit?,Duetocarbondioxide,methane(甲烷)andothergreenhousegases（温室气体）intheatmosphereincreasehappensglobaltemperaturerisephenomenon.,.,7,whyshouldwecare?,sealevelrisechangeinclimateshiftingecosystems(改变生态系统)speciesdie-offoceanacidification(fromCO2increase),.,8,sealevelrise,.,9,changeinclimate,.,10,shiftingecosystems,.,11,speciesdie-off,.,12,oceanacidification,.,13,Ialsowanttoaskyou:whyshouldwecare?BecausethereisonlyoneearthTheearthisouronlyhome,.,14,whatshouldwedo?,Whenusingairconditioning(空调)turndowntwodegreesCelsiusinwinter,turnuptwodegreesCelsiusinsummer.,.,15,Inwinter,dontopenawindowforalongtime,thatcanmaketheheatloss.,.,16,SmartshoppingSuggesttobuybigbottlesofdrinksBuylocallygrownfoodBuyfreshratherthanfrozenfood,.,17,Eatlessbeef（Cowhasfourstomachs(胃),ruminant(反刍)istoreleaselargeamountsofmethane(甲烷),.,18,Reusesho