地球一半物种正在灭绝 川普当总统雪上加霜

地球半物正在绝普当总统雪上加霜Nearlythespeciesonthearefailingtocopewithglobaltheworldhasalreadyexperienced,accordingtoanalarmingstudythatsuggeststhesixthextinctionofanimallifeintheEarth'shistorycouldtakeplacelittleas50years.一项令人震惊的最新研究表明球近一半的物种无法应对当前发生的全球变暖球史上第六次物种大灭绝可能只有50年。Aleadingevolutionarybiologist,JohnWiens,foundthat47percentnearly1,000specieshadsufferedlocalextinctionslinkedtoclimatewithpopulationsabsentfromareaswherehadbeenfoundbefore.约翰韦恩斯教授是一位杰出的化生物学家，他发现在近1000种种中，有的种出现了与气候变化相关的局部灭绝，一些物种在他们原来生存的区域消失了。ProfessorWiens,whoiseditoroftheQuarterlyReviewofBiologyandwinneroftheAmericanSocietyofNaturalists'PresidentialAward,saidtheimplicationsforfuturewereseriousbecausehisreviewshowedplantsandanimalswerestrugglingtodealwiththerelativelyamountofglobalwarmingexperiencedtodate.韦恩斯教授生学季刊编辑美国博物学家志主席奖的获得者认，种种迹象表明未来的局势十分严峻为研究显示植物正勉强应对着当前相对轻微的全球变暖问题。

Sofartheworldhaswarmedbyabout℃pre-industriallevels,butitistohitbetween2.64.8Cnothingisdonetoreducegreenhousegases.与工业化前相比球气温目前为止已经升高了℃果不减少温室气体到2100年气温将升高2.6℃至4.8℃problemlifeonEarthistheelectionofclimatescienceDonaldTrumpasUSpresident.地球生物面临的另一个麻烦是，气候科学否定者唐纳•特朗普当选美国总统。ProfessorWiens,ofArizonaUniversity,describedthisa"globaldisaster"and,whenaskedwhathewouldsaytoPresident-electhim,hejokedgrimly:"Killyourselfimmediately."在亚利桑那州立大学执教的韦恩斯称朗普当选是一全球性灾”当问及如果遇见这位候任总统想对他说点什么时，韦恩斯开玩笑道“紧狗带吧。Inhisstudy,publishedinthejournalPLOSBiology,thescientistexaminedpapersabout976differentspeciesfromallovertheworldthatstudiedatleasttwice,onceyearsagoandagainwithinthelast10years.韦恩斯的研究被发表《公共科图书•生物学刊上他查阅了全球976不同物种

的相关学术论文。这些物种至少都被研究过两次，一次是在约年，另一次是在近年内。"Inalmosthalfthespecieslookedat,therehavebeenlocalextinctions他说，接一半的被观察物已经局部灭绝”showsisspeciescannotchangeenoughtokeepupwithasmallchangeinclimate.That'sthebigimplication-evenasmallchangeinandtheycannothandleit."“这说明生物的进化速度跟不上轻的气候变化。这背后的重大寓意——温即使发生一点变化这些生物也无法适应。”studylookedatkindsofanimalsandplantsfromAsia,Europe,NorthandSouthandelsewhere.该研究观察了来自亚洲、欧洲、北美、南美以及其他地区716种同物和260种同植物。Therefewareasofthethatwereunaffected.地球上很少有未受影响的地区。currentrateglobalextinctionofanimalsandplantsistobefasterthanofthefivegreatextinctioneventsintheEarth'sbutsofarthetotalnumberlostdoesnotthespecieslostwhenthedinosaurswerewipedoutabout65yearsago.人们认为与地球历史上前五次种大灭绝中的几次相比前全球动植物的灭绝速度要更迅速，但是目前为止灭绝的物种数还无法与万前恐龙灭绝时期的数量相提并论。Howeveronereasongeologistsareconsideringdeclaringanewepochintheplanet'shistoryistherapidlossflorafaunathatwillhaveanoticeableeffectthefossil不过动植物的迅速灭绝将对化记录产生显著影响是质学家们正考虑宣告地球历史迎来新纪元的一个原因。ProfessorWienssaid:"It'struethatintermsofglobalextinctionofentirespeciesthathavealreadyhappened,Ithinkwe'renottherethesixthmassextinction]yet.韦恩斯教授称，就球所有种发生灭绝的情况而言，我认为第六次物种大灭绝的确还没有发生。"Butthinkunfortunatelyareontrackforthattohappen.“但不幸的是，我认为事情正朝着个方向发展”

There"twobadsigns"thatTrump'selectionwouldmakethingsworse,ProfessorWienssaid.韦恩斯称，已经“个坏迹显示，特朗普当选会让事情雪上加霜。wouldbethispersonhe'sassignedtothe(renownedclimatesciencedenierScottPruitt)theotherthingispullingoutoftheParisaccord,"“其一是特朗普任命的环保局局出名的反气候科学者斯考•普鲁伊特另一件事就是退出《巴黎协定》。AskedwhathewouldsaytoMrTrumpiftheymet,Wienssaid:"Iwouldtellhim'whatwouldyouthinktherewasacountryontheothersideoftheworldthatwasreleasinggasthatwasgoingtocauseextinctionsinourcountry,tohurtcropsmakepeople在被问及如果二人相遇他会对特朗普真正说些什么时，韦恩斯教授说我我会问如果在世界的另一边有一个国家正排放的气体将使美国的物种灭绝作遭到破坏让人们饿死，你对此怎么。wouldsay