本文为【警惕!人类活动致使南极二氧化碳浓度创新高】的汉字拼音对照版显示拼音
新xin华hua社she伦lun敦dun电dian(记ji者zhe张zhang家jia伟wei)英ying国guo南nan极ji考kao察cha处chu日ri前qian发fa布bu的de研yan究jiu显xian示shi,这zhe一yi机ji构gou的de南nan极ji科ke考kao站zhan6月yue份fen监jian测ce到dao南nan极ji地di区qu大da气qi二er氧yang化hua碳tan浓nong度du达da百bai万wan分fen之zhi400(400PPM),意yi味wei着zhe人ren类lei活huo动dong带dai来lai的de碳tan排pai放fang上shang升sheng已yi逐zhu步bu影ying响xiang到dao地di球qiu最zui偏pian远yuan的de角jiao落luo。
据ju南nan极ji考kao察cha处chu介jie绍shao,北bei半ban球qiu人ren口kou相xiang对dui密mi集ji,燃ran烧shao化hua石shi燃ran料liao等deng人ren类lei活huo动dong不bu断duan推tui高gao碳tan排pai放fang量liang,因yin此ci北bei半ban球qiu大da气qi中zhong的de二er氧yang化hua碳tan浓nong度du在zai2013年nian已yi达da到dao百bai万wan分fen之zhi400这zhe一yi标biao杆gan水shui平ping。相xiang对dui来lai说shuo,南nan半ban球qiu人ren类lei活huo动dong较jiao少shao,而er南nan极ji洲zhou更geng是shi人ren烟yan稀xi少shao,科ke学xue家jia此ci前qian曾zeng预yu测ce,人ren类lei活huo动dong导dao致zhi的de碳tan排pai放fang还huan要yao经jing过guo较jiao长chang时shi间jian才cai会hui对dui南nan半ban球qiu产chan生sheng较jiao大da影ying响xiang。
上shang个ge月yue,美mei国guo科ke研yan人ren员yuan已yi在zai南nan极ji附fu近jin空kong域yu测ce量liang到dao大da气qi二er氧yang化hua碳tan浓nong度du达da到dao百bai万wan分fen之zhi400,但dan英ying国guo南nan极ji科ke考kao站zhan之zhi一yi哈ha雷lei站zhan是shi首shou次ci在zai南nan极ji冰bing面mian上shang持chi续xu测ce量liang到dao这zhe一yi数shu值zhi。
英ying国guo南nan极ji考kao察cha处chu科ke学xue总zong监jian大da卫wei·沃wo恩en教jiao授shou说shuo,南nan极ji大da陆lu地di处chu偏pian远yuan,“这zhe意yi味wei着zhe它ta几ji乎hu是shi地di球qiu上shang最zui后hou一yi个ge受shou人ren类lei活huo动dong影ying响xiang的de地di方fang。即ji便bian如ru此ci,这zhe里li的de二er氧yang化hua碳tan浓nong度du也ye达da到dao了le百bai万wan分fen之zhi400这zhe一yi标biao杆gan值zhi”。
研yan究jiu人ren员yuan分fen析xi南nan极ji冰bing芯xin样yang本ben发fa现xian,当dang前qian南nan极ji二er氧yang化hua碳tan浓nong度du比bi过guo去qu80万wan年nian里li的de任ren何he时shi候hou都dou高gao。他ta们men还huan预yu测ce,南nan极ji二er氧yang化hua碳tan浓nong度du在zai短duan期qi内nei不bu会hui再zai降jiang到dao百bai万wan分fen之zhi400以yi下xia。
沃wo恩en说shuo,哈ha雷lei站zhan在zai南nan极ji收shou集ji的de数shu据ju显xian示shi,大da气qi二er氧yang化hua碳tan浓nong度du这zhe一yi推tui动dong全quan球qiu变bian暖nuan的de主zhu要yao因yin素su仍reng在zai持chi续xu上shang升sheng,并bing且qie当dang前qian的de上shang升sheng速su度du明ming显xian快kuai于yu20世shi纪ji80年nian代dai,“我wo们men对dui地di球qiu产chan生sheng的de影ying响xiang已yi经jing深shen入ru极ji地di”。
【原文】