{"id":677106,"date":"2026-02-16T12:16:04","date_gmt":"2026-02-16T12:16:04","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=677106"},"modified":"2026-02-16T12:16:04","modified_gmt":"2026-02-16T12:16:04","slug":"in-timp-ce-planeta-se-confrunta-cu-ape-in-crestere-groenlanda-ar-putea-sfida-tendinta","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=677106","title":{"rendered":"\u00cen timp ce planeta se confrunt\u0103 cu ape \u00een cre\u0219tere, Groenlanda ar putea sfida tendin\u021ba"},"content":{"rendered":"
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\u00cen timp ce nivelul m\u0103rii continu\u0103 s\u0103 creasc\u0103 la nivel global, noi cercet\u0103ri sugereaz\u0103 c\u0103 \u021b\u0103rmurile Groenlandei ar putea experimenta o tendin\u021b\u0103 opus\u0103. Oamenii de \u0219tiin\u021b\u0103 estimeaz\u0103 c\u0103 nivelul relativ al m\u0103rii \u00een jurul Groenlandei ar putea sc\u0103dea \u00een urm\u0103toarele decenii, din cauza unor efecte geologice \u0219i gravita\u021bionale complexe, potrivit ScienceAlert<\/a><\/span>.<\/p>\n

O echip\u0103 condus\u0103 de geofiziciana Lauren Lewright de la Universitatea Columbia a combinat date observa\u021bionale cu modele informatice avansate. Rezultatele, publicate \u00een revista Nature Communications<\/a><\/span>, arat\u0103 c\u0103 reac\u021bia Groenlandei la schimb\u0103rile climatice difer\u0103 semnificativ de cea a majorit\u0103\u021bii regiunilor de coast\u0103 din lume.<\/p>\n

De ce Groenlanda este un caz aparte<\/h2>\n

Cre\u0219terea nivelului m\u0103rii la nivel global este determinat\u0103 \u00een mare parte de dilatarea termic\u0103. Pe m\u0103sur\u0103 ce oceanele absorb excesul de c\u0103ldur\u0103 generat de gazele cu efect de ser\u0103, apa se dilat\u0103, iar nivelul m\u0103rii cre\u0219te. De asemenea, topirea calotelor glaciare contribuie la aceast\u0103 cre\u0219tere la nivel mondial.<\/p>\n

Totu\u0219i, Groenlanda reprezint\u0103 un caz unic. Insula este acoperit\u0103 de o calot\u0103 glaciar\u0103 masiv\u0103, cu o grosime de aproape 1,6 kilometri. Aceast\u0103 mas\u0103 de ghea\u021b\u0103 apas\u0103 \u00een prezent asupra a aproximativ 80% din suprafa\u021ba terestr\u0103.<\/p>\n

Groenlanda pierde aproximativ 200 de miliarde de tone de ghea\u021b\u0103 anual. Pe m\u0103sur\u0103 ce ghea\u021ba se tope\u0219te, presiunea exercitat\u0103 asupra solului scade. Terenul \u00eencepe astfel s\u0103 se ridice \u00eentr-un proces cunoscut drept ridicare izostatic\u0103.<\/p>\n

Rolul gravita\u021biei \u0219i al pierderii ghe\u021bii<\/h2>\n

Totodat\u0103, gravita\u021bia influen\u021beaz\u0103 nivelul local al m\u0103rii. C\u00e2nd calota glaciar\u0103 este foarte masiv\u0103, aceasta atrage apa oceanului din jur. Pe m\u0103sur\u0103 ce masa de ghea\u021b\u0103 scade, for\u021ba gravita\u021bional\u0103 exercitat\u0103 asupra apei se reduce.<\/p>\n

Aceast\u0103 diminuare a atrac\u021biei gravita\u021bionale determin\u0103 sc\u0103derea nivelului m\u0103rii \u00een apropierea Groenlandei. Combinat\u0103 cu ridicarea terenului, aceast\u0103 dinamic\u0103 duce la o sc\u0103dere a nivelului relativ al m\u0103rii de-a lungul coastei.<\/p>\n

\u00centr-un scenariu cu emisii reduse, cercet\u0103torii estimeaz\u0103 c\u0103 Groenlanda ar putea c\u00e2\u0219tiga aproximativ 0,9 metri de teren expus p\u00e2n\u0103 \u00een 2100. \u00centr-un scenariu cu emisii ridicate<\/a><\/span>, aceast\u0103 valoare ar putea ajunge la 2,5 metri.<\/p>\n

Impact economic \u0219i de mediu<\/h2>\n

Sc\u0103derea nivelului m\u0103rii ar putea remodela infrastructura de coast\u0103 \u0219i pescuitul din Groenlanda, unde majoritatea popula\u021biei locuie\u0219te \u00een apropierea \u021b\u0103rmului.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00cen timp ce nivelul m\u0103rii continu\u0103 s\u0103 creasc\u0103 la nivel global, noi cercet\u0103ri sugereaz\u0103 c\u0103 \u021b\u0103rmurile Groenlandei ar putea experimenta o tendin\u021b\u0103 opus\u0103. Oamenii de \u0219tiin\u021b\u0103 estimeaz\u0103 c\u0103 nivelul relativ … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":677107,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/677106"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=677106"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/677106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/677107"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}