{"id":78132,"date":"2026-05-07T06:25:11","date_gmt":"2026-05-07T06:25:11","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/78132\/"},"modified":"2026-05-07T06:25:11","modified_gmt":"2026-05-07T06:25:11","slug":"metan-unikajici-zpod-gronskeho-ledovce-dokazuje-citlivost-na-klimaticke-zmeny-ukazali-cesti-vedci","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/78132\/","title":{"rendered":"Metan unikaj\u00edc\u00ed zpod Gr\u00f3nsk\u00e9ho ledovce dokazuje citlivost na klimatick\u00e9 zm\u011bny, uk\u00e1zali \u010de\u0161t\u00ed v\u011bdci"},"content":{"rendered":"<p class=\"c_bz\">Zpod taj\u00edc\u00edch okraj\u016f ledovc\u016f na mnoha m\u00edstech na\u0161\u00ed planety unik\u00e1 metan (CH4), siln\u00fd sklen\u00edkov\u00fd plyn. Tento teprve ned\u00e1vno objeven\u00fd fenom\u00e9n proto vyvol\u00e1v\u00e1 obavy z\u00a0dal\u0161\u00ed potenci\u00e1ln\u00ed zp\u011btn\u00e9 vazby pro prob\u00edhaj\u00edc\u00ed klimatickou zm\u011bnu zp\u016fsoben\u00e9 odled\u0148ov\u00e1n\u00edm.<\/p>\n<p class=\"c_bz\">V\u011bdci sesb\u00edrali des\u00edtky vzork\u016f tavn\u00e9 vody vyt\u00e9kaj\u00edc\u00ed zpod ledu pod\u00e9l cel\u00e9ho z\u00e1padn\u00edho okraje ledovce a\u00a0zkoumali metan v\u00a0n\u00ed rozpu\u0161t\u011bn\u00fd pomoc\u00ed anal\u00fdzy stabiln\u00edch izotop\u016f uhl\u00edku a\u00a0vod\u00edku a\u00a0radioizotopov\u00e9ho datov\u00e1n\u00ed.<\/p>\n<p class=\"c_bz\"><a data-dot=\"atm-link\" target=\"_blank\" rel=\"noopener nofollow\" href=\"https:\/\/www.nature.com\/articles\/s41561-026-01976-5\" class=\"c_N\">V\u00fdsledky anal\u00fdz<\/a> ukazuj\u00ed, \u017ee metan unikaj\u00edc\u00ed zpod Gr\u00f3nsk\u00e9ho ledovce je 1500\u20134500\u00a0let star\u00fd a\u00a0poch\u00e1z\u00ed z\u00a0mikrobi\u00e1ln\u00edho rozkladu organick\u00e9 hmoty bez p\u0159\u00edstupu kysl\u00edku. To znamen\u00e1, \u017ee b\u011bhem holoc\u00e9nu (sou\u010dasn\u00e9 geologick\u00e9 obdob\u00ed, tj. mlad\u0161\u00ed \u010dtvrtohory) do\u0161lo k\u00a0v\u00fdrazn\u00e9mu odt\u00e1n\u00ed z\u00e1padn\u00edho okraje ledovce a\u00a0n\u00e1r\u016fstu tundrov\u00e9 vegetace a\u00a0nahromad\u011bn\u00ed organick\u00e9 hmoty na odhalen\u00e9m \u00fazem\u00ed. Ta byla pak p\u0159ekryta znovu rostouc\u00edm ledovcem b\u011bhem n\u00e1sleduj\u00edc\u00edho chladn\u011bj\u0161\u00edho obdob\u00ed.<\/p>\n<p><a data-dot=\"atm-link\" target=\"_self\" href=\"https:\/\/www.novinky.cz\/clanek\/veda-skoly-krehka-rovnovaha-antarktidy-vice-snezi-ale-led-taje-stale-rychleji-40576245\" class=\"c_N\" rel=\"nofollow noopener\"><img fetchpriority=\"high\" height=\"337\" width=\"600\" src=\"https:\/\/www.europesays.com\/cz\/wp-content\/uploads\/2026\/05\/klima-ledovec-snih-antarktida.jpeg\" loading=\"eager\" decoding=\"sync\" class=\"c_t c_r\"\/><\/a><\/p>\n<p class=\"c_bz\">\u201eStudie p\u0159in\u00e1\u0161\u00ed dal\u0161\u00ed d\u016fkaz toho, jak citliv\u00fd je Gr\u00f3nsk\u00fd ledovec ke zm\u011bn\u00e1m klimatu. To, \u017ee b\u011bhem pom\u011brn\u011b kr\u00e1tk\u00e9ho obdob\u00ed, kter\u00e9 bylo klimaticky srovnateln\u00e9 se sou\u010dasnost\u00ed, odt\u00e1l daleko za hranice dne\u0161n\u00edho rozsahu, je znepokojivou p\u0159ipom\u00ednkou toho, co n\u00e1s \u010dek\u00e1 v\u00a0bl\u00edzk\u00e9 budoucnosti,\u201c \u0159\u00edk\u00e1 spoluautor studie, glaciolog Alun Hubbard z\u00a0univerzity ve finsk\u00e9m Oulu.<\/p>\n<p><img height=\"3024\"   width=\"4032\" src=\"https:\/\/www.europesays.com\/cz\/wp-content\/uploads\/2026\/05\/klima-ledovec-gronsko-metan.jpeg\" loading=\"eager\" decoding=\"sync\" class=\"c_t c_r\"\/>Foto: Jakub \u017d\u00e1rsk\u00fd<\/p>\n<p class=\"c_bz\">Tavn\u00e1 voda un\u00e1\u0161\u00ed mno\u017estv\u00ed rozpu\u0161t\u011bn\u00e9ho metanu, kter\u00fd je mo\u017en\u00e9 na m\u00edst\u011b z\u00a0vody z\u00edskat a\u00a0podrobit laboratorn\u00edm anal\u00fdz\u00e1m.<\/p>\n<p class=\"c_bz\">Celkov\u00e9 mno\u017estv\u00ed metanu unikaj\u00edc\u00edho zpod Gr\u00f3nsk\u00e9ho ledovce v\u00a0sou\u010dasn\u00e9 dob\u011b na\u0161t\u011bst\u00ed nen\u00ed p\u0159\u00edli\u0161 velk\u00e9 a\u00a0v glob\u00e1ln\u00edm m\u011b\u0159\u00edtku je zat\u00edm zanedbateln\u00e9. To se v\u0161ak m\u016f\u017ee v\u00a0bl\u00edzk\u00e9 budoucnosti zm\u011bnit.<\/p>\n<p class=\"c_bz\">\u201eNa\u0161e zji\u0161t\u011bn\u00ed ukazuj\u00ed, jak v\u00fdznamn\u00e1 je role t\u011bch pom\u011brn\u011b ned\u00e1vn\u00fdch zm\u011bn v\u00a0rozsahu ledovce na kolob\u011bh uhl\u00edku v\u00a0tomto d\u016fle\u017eit\u00e9m arktick\u00e9m ekosyst\u00e9mu. I\u00a0p\u0159es to relativn\u011b mal\u00e9 mno\u017estv\u00ed metanu, kter\u00e9 se te\u010f zpod ledu uvol\u0148uje, jsou na\u0161e v\u00fdsledky relevantn\u00ed i\u00a0pro glob\u00e1ln\u00ed odhady bilance metanu v\u00a0atmosf\u00e9\u0159e,\u201c uv\u00e1d\u00ed Jade Hattonov\u00e1, jedna z\u00a0hlavn\u00edch autorek studie. <\/p>\n<p class=\"c_bz\">Zrychluj\u00edc\u00ed t\u00e1n\u00ed ledovc\u016f toti\u017e povede ke zv\u00fd\u0161en\u00fdm emis\u00edm metanu, a\u00a0to nejen v\u00a0Gr\u00f3nsku, ale velmi pravd\u011bpodobn\u011b i\u00a0v\u00a0Antarktid\u011b, kde jsou z\u00e1soby organick\u00e9 hmoty o\u00a0mnoho v\u011bt\u0161\u00ed a\u00a0o\u010dek\u00e1van\u00e9 emise metanu proto potenci\u00e1ln\u011b daleko z\u00e1va\u017en\u011bj\u0161\u00ed.<\/p>\n<p><a data-dot=\"atm-link\" target=\"_self\" href=\"https:\/\/www.novinky.cz\/clanek\/pocasi-arkticky-morsky-led-dosahl-historicky-nejnizsiho-maxima-40569436\" class=\"c_N\" rel=\"nofollow noopener\"><img height=\"2304\" width=\"4096\" src=\"https:\/\/www.europesays.com\/cz\/wp-content\/uploads\/2026\/04\/led-arktida-tani.jpeg\" loading=\"eager\" decoding=\"sync\" class=\"c_t c_r\"\/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Zpod taj\u00edc\u00edch okraj\u016f ledovc\u016f na mnoha m\u00edstech na\u0161\u00ed planety unik\u00e1 metan (CH4), siln\u00fd sklen\u00edkov\u00fd plyn. Tento teprve ned\u00e1vno&hellip;\n","protected":false},"author":2,"featured_media":78133,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[340,159,13017,25116,2812,54,4573,760,77,53,52],"class_list":{"0":"post-78132","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-svet","8":"tag-gronsko","9":"tag-klima","10":"tag-ledovce","11":"tag-methan-metan","12":"tag-studie","13":"tag-svet","14":"tag-tani","15":"tag-univerzita-karlova-uk","16":"tag-veda","17":"tag-world","18":"tag-world-news"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116531870183692421","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/78132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=78132"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/78132\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/78133"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=78132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=78132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=78132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}