Ubushakashatsi bushya bwerekanye ko umwe mu ruhererekane rw'imigenzo y'isi - Kuzenguruka Solidinic (Amoc), bituma hambuka inyanja ya Atalantika, ndetse no mu nyanja ya Atalantika, mu nyanja ya Atlantike kuva mu majyepfo no mu majyaruguru ya Atalantika kugeza byinshi Amazi ya Polar Atlantike bityo afasha isi kugenzura ubushyuhe - bwageze mu miganti idakomeye cyane mu kinyagihumbi. Kandi gukwirakwiza neza ubushyuhe kuri iyi si byarakemutse.
Abahanga bo muri kaminuza nkuru ya Irilande mu kubungabunga, Ishuri Rikuru rya Londres (Ubwongereza) na Kaminuza ya Potsdam (Ubudage) yize amakuru yizewe mu myaka 1600 ishize kubera imihindagurikire y'ikirere gishize kubera imihindagurikire y'ikirere gishize kubera imihindagurikire y'ikirere. Ibikorwa byabo byasohotse mu kinyamakuru kamere ya Geoscience.
Kubera ko, nkuko bimaze kuvugwa haruguru, kuzenguruka amazi muri Atlantika bihanganira ubushyuhe mu majyaruguru, bigaragaza ko mu gihugu - kandi nta gihe cy'imbeho mubwongereza bushobora kuba hafi 5 ° C hakonje. Kuba ubushyuhe bwisi bwica intege kuri Atlantike ya Atlantike ni igice cya Amosi, harazwi kuva kera. Muri 2018, itsinda rimwe ry'abahanga ryatangaje ko umuvuduko wa Golf waguye byibuze mu mateka yose yo kwitegereza no mu gihe kizaza gishobora kuzimira na gato. Ukurikije amakuru yabo ya nyuma, kuzenguruka Melantike ubwayo kuva mu kinyejana cya makumyabiri cyacitse intege hafi 15%.
Muganga wa Potsdam yagize ati: "Bwa mbere twiyegure umubare w'abantu bashizemo amashuri abanza batanga ishusho idahwitse y'ihindagurika rya Amosi ku myaka 1600." - Ibisubizo byerekanaga ko kuzenguruka byari bihagaze neza kugeza imperuka ya XIX. Ariko hamwe no kurangiza igihe gito cy'ikirere, mu myaka ya 1850, inyanja yatangiye kugabanuka, no hagati yo mu kinyejana cya makumyabiri, kuva mu myaka ya za 60, igabanywa rya kabiri, rikabije, ryakurikiyeho. Kugarura gato kwabaye icyo gihe mu myaka ya za 90, ariko nyuma igabanuka ryabaye mu myaka icumi ya mbere ya 2000. "
Ikintu nyamukuru cyagezweho kukazi nuko yahujije nubwoko butandukanye bwikirere "amakuru ataziguye" kugirango ashakishe AMOC. Birumvikana ko ibisubizo bigomba kubonwa no kwitonda, cyane ko impamvu zishoboka zo kwihutisha ikwirakwizwa rya Atlantike ntabwo bize byihariye.
Ariko, nkuko ubushakashatsi bwambere bwerekanye, imihindagurikire y'ikirere, hashobora kugira uruhare mu guca intege inyanja, bigatera urubura mu turere two mu majyaruguru yo mu misozi. Gushonga urubura bizana amazi meza mu nyanja - kandi bibangamira gukwirakwizwa bisanzwe mu nyanja. Kubera iyo mpamvu, iyo ubushyuhe bwisi buzakomeza kugeza igihe XXI izakomeza (nkuko tubyumva, iyi nzira ntikirahagarara), "Umuyoboro uriho" muri Atalantika amaherezo ucika intege.
Abahanga mu bya siyansi bavuga ko abahanga mu bya siyansi bakwirakwizwa bamaze kugaragara muri sisitemu y'ikirere ku mpande zombi z'inyanja imwe ya Atalantika. Mugihe imigendekere yinyanja yiburasirazuba iracika intege, amazi menshi arashobora kwegeranya, azaganisha ku kwiyongera gushingiye mu nyanja, urugero, hafi ya New York na Boston.
Muri icyo gihe, Uburayi bwasomye imiraba. "By'umwihariko, umuhengeri mwinshi mu ciro ya 2015 wasangaga twanditseho ibicurane mu majyaruguru y'inyanja ya Atalantika muri uwo mwaka - iyi yasa nkaho ari ingaruka zo mu majyaruguru y'ubukonje bwa Atlantike agira uruhare mu gushinga umuvuduko w'ikirere, uyobora umwuka usukuye uturutse mu majyepfo ugana mu Burayi, "abanditsi bayobora i Burayi," abanditsi bayobora mu majyepfo i Burayi. "
Inkomoko: Ubumenyi bwambaye ubusa