The Atlantic Current, wani katon teku "conveyor bel" wanda ke dauke da ruwan dumi daga wurare masu zafi zuwa Arewacin Atlantic, yana raguwa kuma yana gab da rushewa, wanda zai canza yanayin zafi a Turai. Masana kimiyya sun yi gargadi game da hakan shekaru da yawa. Binciken na baya-bayan nan ba wai kawai ya tabbatar da asarar makamashi a cikin wannan halin yanzu ba, har ma ya yi hasashen tsayawar kwatsam a nan gaba ba da nisa ba. Wannan kulle-kullen zai yi tasiri a duk fadin Turai, wanda zai haifar da tsawaita fari tare da jefa yawancin nahiyar cikin sanyin sanyi har abada. Masana kimiyya magana game da rafin gulf ya rushe a matsayin mummunan sakamako ga yanayin duniya.
Don haka, za mu sadaukar da wannan labarin don gaya muku duk abin da kuke buƙatar sani game da rugujewar Tekun Fasha.
Atlantic Yanzu
Wani masanin kimiyyar yanayi daga Jami'ar Complutense ta Madrid ya ce: "Da zarar hakan ta faru, motsin ruwan zafi mai zafi zuwa yankin Arewacin Atlantic zai daina. za su zama ruwan sanyi kuma za su yi tasiri ga yanayin yankin. Bisa ga binciken, wanda aka buga a cikin mujallar Nature, halin wannan ruwa "belt mai ɗaukar kaya" - wanda aka sani da Atlantic Meridional Overturning Circulation -AMOC- ya ba da isassun alamun cewa yana gab da rushewa.
Zazzagewar thermohaline (THC) yana ɗaya daga cikin mahimman abubuwan da ke tattare da zagayawa cikin teku akan sikelin duniya. Ainihin, yana daya daga cikin abubuwan da ke tabbatar da yanayin duniya saboda muhimmiyar rawar da yake takawa a cikin yanayin zafi na duniya. AMOC, dake cikin wannan bel na jigilar kaya, yana daidaita yanayin zafi a Kudancin Atlantic. "Na gode da shi, Madrid tana da yanayi mai zafi fiye da New York, duk da cewa suna cikin latitude iri ɗaya", in ji masanin kimiyyar yanayi.
Ayyukansa yana da halin yanzu na ruwa mai dumi da gishiri wanda ya ketare tekun Atlantika na sama, yayin da wani na yanzu ke jigilar ruwan sanyi da zurfi zuwa kudu. wanda zai zama wani bangare na zagayawa na thermohaline.
Duk da haka, injin da ke tafiyar da wannan ruwan tekun Atlantika ya ƙare da tururi a cikin shekaru goma da suka gabata, kuma sauyin yanayi da kansa ake tunanin shi ne sanadin. "Ba a bayyane ba, amma yawancin ra'ayoyin suna nuni ga narkewar Greenland a matsayin babban dalilin wannan raguwa," in ji González. saboda kankarar da ke cikin mafi tsananin sanyi na Turai ne ke ba da damar kogin Atlantika ya yi aiki.
Wannan ya yi daidai da karuwar yawan ruwan saman da ke haifar da zurfafa sauyin yanayi, wanda ya kawo tsarin mataki daya kusa da rugujewa gaba daya.
Nazari kan rugujewar kogin Gulf
Binciken bai fayyace lokacin da lamarin zai iya faruwa ba, amma bai kawar da cewa zai faru a cikin shekaru masu zuwa ba. mai yiyuwa ma kafin karshen karni. "Wannan zai haifar da bala'i a Turai da ma duniya baki daya," saboda ba zato ba tsammani "zai canza yanayin gaba daya," masu binciken sun kammala.
A haƙiƙa, ana ɗaukar wannan yanayi na musamman a matsayin “matsalar tsarin yanayi,” ma’ana cewa da zarar ya faru, yanayin yankin ba zai sake kasancewa kamar haka ba.
Sakamakon rugujewar kogin Gulf
Jerin da Hukumar Kula da Canjin Yanayi (IPCC) ta haɗa ta ƙunshi maki tara da ke fuskantar sauyin yanayi waɗanda abin ya shafa sosai ko kuma ke cikin haɗarin ɓacewa. Abubuwa tara sune ƙanƙarar tekun Arctic, takardar kankara ta Greenland, gandun daji na boreal, permafrost, tsarin halin yanzu na Atlantic, gandun daji na Amazon, murjani mai dumi-dumi, da tudun kankara na Kudancin Tekun a yammacin Antarctica da Gabashin Asiya. Duk waɗannan abubuwan da aka haɗa suna da alaƙa, don haka abin da ya shafi mutum yana rinjayar wani.
"Wannan lamarin na iya zama mafi muni fiye da ɗumamar yanayi, saboda ana jin tasirinsa a hankali, amma duk da haka wannan wani muhimmin sauyi ne wanda har yanzu zai sami tasirin da ba a yi niyya ba," in ji shi. Abubuwan da za su iya haifarwa sun haɗa da rage ruwan sama, Dusar ƙanƙara mai yawa ta rufe a ƙarin sassa na Turai, matsalolin aikin gona ko yuwuwar abubuwan da suka fi girma kamar guguwa mai ƙarfi.
Abin da ya faru, kamar yadda González Alemán ya yi gargadin, shi ne cewa ko da yake waɗannan tasirin suna da alama sun saba da sauyin yanayi kuma har zuwa wani matsayi na daidaitawa, wannan ba haka ba ne.
"A wasu wuraren yana iya daidaita al'amura guda biyu, a wasu kuma yana iya rage tasirin sauyin yanayi, a wasu kuma yana iya inganta tasirin sauyin yanayi," in ji masu binciken, wadanda suka jaddada cewa illar da ke tattare da irin wannan rugujewar ita ce kawai. gaba "ya fi rikitarwa". "Ba mu san duk tasirin da zai iya haifarwa ba, kuma yana iya haifar da abubuwan da ba za a iya tantancewa ba," in ji shi.
Tasiri kai tsaye akan Tekun Atlantika
Bincike ya nuna cewa muna gabatowa wani mahimmin kofa wanda tsarin jini zai iya rugujewa. Wannan aikin ya nuna cewa abubuwa da yawa suna ƙara tasirin ɗumamar Tekun Atlantika kai tsaye akan zagawar sa.
Waɗannan sun haɗa da shigowar ruwa mai daɗi daga narkar da zanen kankara na Greenland, narkewar ƙanƙarar teku, haɓakar hazo da ruwan kogi. Ruwa mai kyau yana rage yanayin da ruwan Arewacin Atlantika ya nutse daga sama, daya daga cikin abubuwan da ke haifar da tashin hankali.
Tsarin kewayawa na Atlantic Meridional wani muhimmin ruwa ne na teku wanda ke daidaita yanayin duniya saboda yana ɗaukar ruwan dumi daga saman saman a manyan latitudes, yana dumama iska, nutsewa, kuma ya dawo cikin equator. Alal misali, yana da alhakin Spain, wanda ke jin dadi yanayi mafi sauƙi idan aka kwatanta da sauran duniya a latitude ɗinmu ɗaya.
Idan yankin Arctic ya yi zafi, Turai za ta yi sanyi domin lokacin da ruwa mai sanyi da ƙarancin gishiri ya shiga cikin Tekun Atlantika, yana katse kwararar ruwan dumi daga Amurka ta tsakiya zuwa Turai, wanda hakan zai sa yanayin zafin duniya ya ragu a yammacin Turai, don haka zafin jiki zai matsa zuwa wani matakin kwatankwacin wanda aka rubuta a Arewacin Amurka a latitude ɗaya.
Ina fatan da wannan bayanin zaku iya ƙarin koyo game da illolin rugujewar kogin Gulf.