问题补充说明:essay 急求
Globalwarmingistheincreaseintheaver360问答agetemperatureoftheEarth'snear-sur居火的faceairandocean手顶室约安位解侵步办ssincethemid-20thcenturyanditsprojectedcontinuation.
Globalsurfacetemperatureincreased0.74±0.18°C(1.33±0.32批既当攻务面算还鸡周准°F)duringthe100yearsendingin2005.[1][2]TheIntergovernmentalPanelonClimateChange(IPCC)concludesthatmostofthetemperatureincrease正科三定奏艺实sincethemid-twentiethcentury酒依评目师革is"verylikely"duetot些服久湖情若升入heincreaseinanthropogenicgreenhousegasconcentrations.[3][2]Naturalphe扬我括团司却时风烈nomenasuchassolarvariationandvolcanoesprobablyhadasmallwarmingeffectfrompre-industrialtimesto1950andasmallcoolingeff料需组杆肥销构过ectfrom1950onward.[4][5]Thesebasicconclusionshavebeenendorsedbyatleast30scientificsocie动之义苗班极流九坏tiesandaca极完友下毫速单英没第土demiesofscience,[6]includingallofthenat待问乡里华械ionalacademiesofsc层易的台ienceofthemajor城财industrializedc常们回急矛ountries.[7][8][9]Whileindividualscientistshavevoiceddisagreementw流外均讨书左iththesefindings,[10]theoverwhelmingmajorityofscientis名爱按责思房衣tsworking笑父有onclimatechangeagreewiththeIPCC's和mainconclusions.[11][12]
Climatemodelprojectionsindicatethatglobalsurfacetemperaturewilllikelyriseafurther1.1to6.4°C(2.0to11.5°F)duringthetwenty-firstcentury.[3]Theuncertaintyinthisestimatearisesfromuseofdifferingestimatesoffuturegreenhousegasemissionsandfromuseofmodelswithdifferingclimatesensitivity.Anotheruncertaintyishowwarmingandrelatedchangeswillvaryfromregiontoregionaroundtheglobe.Althoughmoststudiesfocusontheperiodupto2100,warmingisexpectedtocontinueformorethanathousandyearsevenifgreenhousegaslevelsarestabilized.Thisresultsfromthelargeheatcapacityoftheoceans.[3]
Increasingglobaltemperaturewillcausesealevelstoriseandwillchangetheamountandpatternofprecipitation,likelyincludinganexpanseofthesubtropicaldesertregions.[13]Otherlikelyeffectsincludeincreasesintheintensityofextremeweatherevents,changesinagriculturalyields,modificationsoftraderoutes,glacierretreat,speciesextinctionsandincreasesintherangesofdiseasevectors.
MostnationalgovernmentshavesignedandratifiedtheKyotoProtocolaimedatreducinggreenhousegasemissions.Politicalandpublicdebatecontinuesregardingwhat,ifany,actionshouldbetakentoreduceorreversefuturewarmingortoadapttoitsexpectedconsequences.
标签:global,warming