{"id":42328,"date":"2025-11-13T09:24:11","date_gmt":"2025-11-13T09:24:11","guid":{"rendered":"https:\/\/www.europesays.com\/ro\/42328\/"},"modified":"2025-11-13T09:24:11","modified_gmt":"2025-11-13T09:24:11","slug":"islanda-considera-colapsul-curentilor-oceanici-din-atlantic-o-amenintare-existentiala-si-incepe-pregatirile-pentru-o-posibila-criza-climatica","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ro\/42328\/","title":{"rendered":"Islanda consider\u0103 colapsul curen\u021bilor oceanici din Atlantic o \u201eamenin\u021bare existen\u021bial\u0103\u201d \u0219i \u00eencepe preg\u0103tirile pentru o posibil\u0103 criz\u0103 climatic\u0103"},"content":{"rendered":"

Guvernul Islandei a clasificat pr\u0103bu\u0219irea poten\u021bial\u0103 a unui important sistem de curen\u021bi oceanici din Atlantic drept \u201eamenin\u021bare existen\u021bial\u0103\u201d \u0219i a \u00eenceput elaborarea unui plan na\u021bional de r\u0103spuns \u00een caz de dezastru.<\/p>\n

\t\t\t\"Reykjav\u00edk,<\/p>\n

Reykjav\u00edk, Islanda\/FOTO:X<\/p>\n

Sistemul numit Atlantic Meridional Overturning Circulation (AMOC) \u2013 care include \u0219i binecunoscutul Curent al Golfului (Gulf Stream) \u2013 ac\u021bioneaz\u0103 ca o uria\u0219\u0103 \u201eband\u0103 transportoare\u201d oceanic\u0103, ce mut\u0103 apa cald\u0103 din tropice spre nordul Atlanticului. Acest mecanism natural men\u021bine iernile mai bl\u00e2nde \u00een nord-vestul Europei \u0219i nord-estul Statelor Unite \u0219i influen\u021beaz\u0103 tiparele meteorologice la scar\u0103 global\u0103, inclusiv regimul precipita\u021biilor tropicale.<\/p>\n

Oamenii de \u0219tiin\u021b\u0103 avertizeaz\u0103 \u00eens\u0103 c\u0103 \u00eenc\u0103lzirea accelerat\u0103 a climei \u0219i topirea ghe\u021barilor arctici \u2013 \u00een special a calotei glaciare din Groenlanda \u2013 ar putea introduce \u00een Atlantic cantit\u0103\u021bi mari de ap\u0103 dulce rece, destabiliz\u00e2nd sistemul. O oprire complet\u0103 a AMOC ar putea provoca o \u201emini er\u0103 glaciar\u0103 modern\u0103\u201d, cu temperaturi de iarn\u0103 mult mai sc\u0103zute \u0219i ninsori abundente \u00een nordul Europei.<\/p>\n

AMOC s-a pr\u0103bu\u0219it \u0219i \u00een trecut, cel mai recent \u00eenainte de ultima epoc\u0103 glaciar\u0103, \u00een urm\u0103 cu aproximativ 12.000 de ani.<\/p>\n

\u201eEste o amenin\u021bare direct\u0103 la adresa rezilien\u021bei \u0219i securit\u0103\u021bii na\u021bionale\u201d, a declarat ministrul islandez al Mediului \u0219i Climei, Johann Pall Johannsson. \u201eEste pentru prima dat\u0103 c\u00e2nd un fenomen climatic specific este adus \u00een fa\u021ba Consiliului Na\u021bional de Securitate ca poten\u021bial\u0103 amenin\u021bare existen\u021bial\u0103.\u201d<\/p>\n

Decizia \u00eenseamn\u0103 c\u0103 ministerele islandeze vor fi \u00een stare de alert\u0103 \u0219i vor coordona ac\u021biuni de r\u0103spuns. Guvernul analizeaz\u0103 noi politici \u0219i programe de cercetare, \u00een paralel cu elaborarea unui plan na\u021bional de preg\u0103tire pentru situa\u021bii de urgen\u021b\u0103.<\/p>\n

Printre riscurile evaluate se num\u0103r\u0103 securitatea energetic\u0103 \u0219i alimentar\u0103, infrastructura \u0219i transportul interna\u021bional.<\/p>\n

Impactul unui colaps al AMOC ar dep\u0103\u0219i \u00eens\u0103 cu mult grani\u021bele Europei de Nord. Oprirea curentului ar putea perturba tiparele de ploaie de care depind milioane de fermieri din Africa, India \u0219i America de Sud, potrivit exper\u021bilor. \u00cen acela\u0219i timp, ar putea accelera \u00eenc\u0103lzirea Antarcticii, unde calota glaciar\u0103 este deja amenin\u021bat\u0103 de schimb\u0103rile climatice.<\/p>\n

Oamenii de \u0219tiin\u021b\u0103 avertizeaz\u0103 c\u0103 riscul este subestimat \u0219i c\u0103, pe fondul cre\u0219terii continue a temperaturilor globale, colapsul AMOC ar putea deveni inevitabil \u00een urm\u0103toarele decenii.<\/p>\n

\u00cen octombrie, Consiliul Nordic al Mini\u0219trilor a finan\u021bat un atelier de lucru \u2013 Nordic Tipping Week \u2013 la care 60 de exper\u021bi au analizat efectele sociale \u0219i economice ale unui astfel de scenariu. \u201eExist\u0103 numeroase studii despre c\u00e2nd ar putea avea loc pr\u0103bu\u0219irea, dar mult mai pu\u021bine despre cum va fi afectat\u0103 societatea\u201d, a spus Aleksi Nummelin, oceanograf la Institutul Meteorologic din Finlanda.<\/p>\n

Luni, peste 30 de universit\u0103\u021bi \u0219i organiza\u021bii interna\u021bionale au lansat un nou apel privind accelerarea topirii ghe\u021barilor \u0219i calotelor de ghea\u021b\u0103 la nivel global.<\/p>\n

Ministerele mediului din alte \u021b\u0103ri nordice \u2013 inclusiv Irlanda, Norvegia \u0219i Marea Britanie \u2013 au confirmat pentru Reuters c\u0103 finan\u021beaz\u0103 cercet\u0103ri suplimentare \u0219i evalueaz\u0103 dac\u0103 pr\u0103bu\u0219irea AMOC trebuie inclus\u0103 \u00een strategiile na\u021bionale de securitate climatic\u0103.<\/p>\n

\u00cen Irlanda, serviciul meteorologic a informat premierul \u0219i o comisie parlamentar\u0103 despre posibilele riscuri.<\/p>\n

\u00cen Norvegia, autorit\u0103\u021bile spun c\u0103 \u201eanalizeaz\u0103 problema prin noi cercet\u0103ri\u201d \u00eenainte de a decide clasificarea oficial\u0103 a riscului.<\/p>\n

Regatul Unit consider\u0103 o pr\u0103bu\u0219ire brusc\u0103 improbabil\u0103 \u00een acest secol, dar a alocat peste 81 de milioane de lire sterline pentru studierea sistemelor climatice aflate \u00een pragul punctului de ireversibilitate.<\/p>\n

\u201e\u0218tiin\u021ba evolueaz\u0103 foarte rapid, iar timpul pentru ac\u021biune se scurge. Punctul de cotitur\u0103 ar putea fi mult mai aproape dec\u00e2t credem\u201d, a avertizat oceanograful \u0219i climatologul Stefan Rahmstorf, de la Institutul Potsdam pentru Cercetarea Impactului Climatic (Germania).<\/p>\n

\u00cen Islanda, autorit\u0103\u021bile spun c\u0103 nu pot a\u0219tepta certitudini \u0219tiin\u021bifice. \u201eFormarea ghe\u021bii marine poate afecta transportul maritim, iar fenomenele meteorologice extreme pot pune \u00een pericol agricultura \u0219i pescuitul \u2013 pilonii economiei noastre \u0219i ai securit\u0103\u021bii alimentare\u201d, a declarat ministrul Johannsson. \u201eNu ne putem permite s\u0103 a\u0219tept\u0103m cercet\u0103ri definitive \u00eenainte de a ac\u021biona.\u201d<\/p>\n

\t\t\tCum influen\u021beaz\u0103 \u00eenc\u0103lzirea global\u0103 curen\u021bii oceanici<\/p>\n

Cercet\u0103torii explic\u0103 faptul c\u0103 topirea ghe\u021barilor arctici ar putea duce la colapsul sistemului AMOC, care regleaz\u0103 circula\u021bia apei \u00een Atlantic. Curentul transport\u0103 apa cald\u0103 de la suprafa\u021b\u0103, din zonele tropicale, c\u0103tre nordul Oceanului Atlantic, unde aceasta elibereaz\u0103 c\u0103ldur\u0103, se r\u0103ce\u0219te, devine mai dens\u0103 \u0219i coboar\u0103 spre ad\u00e2ncuri, fiind transportat\u0103 \u00eenapoi spre sud.<\/p>\n

Acest proces \u2013 descris adesea ca \u201ebanda transportoare a oceanului\u201d \u2013 asigur\u0103 echilibrul termic \u00eentre emisfere. \u00cens\u0103, pe m\u0103sur\u0103 ce \u00een Groenlanda se tope\u0219te tot mai mult\u0103 ghea\u021b\u0103, fluxul de ap\u0103 dulce dilueaz\u0103 salinitatea \u0219i densitatea apei oceanice, \u00eencetinind mecanismul.<\/p>\n

F\u0103r\u0103 acest sistem, o mare parte din Europa de Nord ar putea intra \u00eentr-o r\u0103cire accentuat\u0103, chiar dac\u0103 restul lumii continu\u0103 s\u0103 se \u00eenc\u0103lzeasc\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"Guvernul Islandei a clasificat pr\u0103bu\u0219irea poten\u021bial\u0103 a unui important sistem de curen\u021bi oceanici din Atlantic drept \u201eamenin\u021bare existen\u021bial\u0103\u201d…\n","protected":false},"author":2,"featured_media":42329,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[7567,4467,32,33,31,17189,17188,36,37,27,74,17187,34,35,25,41,40,38,39,26,28,29,30,71,72,73],"class_list":{"0":"post-42328","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-international","8":"tag-amenintare","9":"tag-atlantic","10":"tag-breaking-news","11":"tag-breakingnews","12":"tag-cele-mai-populare-subiecte","13":"tag-criza-climatica","14":"tag-curenti-oceanici","15":"tag-featured-news","16":"tag-featurednews","17":"tag-headlines","18":"tag-international","19":"tag-islanda","20":"tag-latest-news","21":"tag-latestnews","22":"tag-news","23":"tag-ro","24":"tag-romana","25":"tag-romania","26":"tag-romanian","27":"tag-stiri","28":"tag-titluri","29":"tag-top-stories","30":"tag-topstories","31":"tag-world","32":"tag-world-news","33":"tag-worldnews"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ro\/115541669705215577","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/posts\/42328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/comments?post=42328"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/posts\/42328\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/media\/42329"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/media?parent=42328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/categories?post=42328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ro\/wp-json\/wp\/v2\/tags?post=42328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}