{"id":119507,"date":"2026-10-27T00:34:43","date_gmt":"2026-10-26T23:34:43","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=119507"},"modified":"2026-10-26T19:01:54","modified_gmt":"2026-10-26T18:01:54","slug":"nebyl-to-nas-co2-tani-ledovce-soudneho-dne-saha-az-do-40-let-20-stoleti","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/10\/27\/nebyl-to-nas-co2-tani-ledovce-soudneho-dne-saha-az-do-40-let-20-stoleti\/","title":{"rendered":"Nebyl to n\u00e1\u0161 CO2: T\u00e1n\u00ed \u201eledovce soudn\u00e9ho dne\u201c sah\u00e1 a\u017e do 40. let 20. stolet\u00ed"},"content":{"rendered":"
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Ledovec Thwaites v z\u00e1padn\u00ed Antarktid\u011b bude i nad\u00e1le ztr\u00e1cet led po dobu 150 let, i kdy\u017e bude t\u00e1n\u00ed mo\u0159skou vodou pod jeho ledov\u00fdm \u0161elfem zcela zastaveno. To ukazuj\u00ed t\u0159i nez\u00e1visl\u00e9 po\u010d\u00edta\u010dov\u00e9 modely. Mezi faktory, kter\u00e9 jsou za to zodpov\u011bdn\u00e9, pat\u0159\u00ed klimatick\u00e9 zm\u011bny od 40. let 20. stolet\u00ed, jejich\u017e dopady jsou dodnes patrn\u00e9. Druh\u00e1 studie tak\u00e9 zd\u016fraz\u0148uje obrovsk\u00fd v\u00fdznam v\u011btrn\u00fdch vzorc\u016f a oce\u00e1nsk\u00fdch proud\u016f.<\/span><\/strong><\/p>\n

Ledovec Thwaites se po l\u00e9ta naz\u00fdv\u00e1 \u201eledovec soudn\u00e9ho dne\u201c. V \u00fanoru dokonce <\/span>stanice Euronews<\/span><\/a> otiskla titulek: Mohla by 150 metr\u016f vysok\u00e1 ze\u010f zabr\u00e1nit tomuto antarktick\u00e9mu ledovci v zaplaven\u00ed Zem\u011b? V\u011bdci a in\u017een\u00fd\u0159i skute\u010dn\u011b pracuj\u00ed na konceptu p\u0159ibli\u017en\u011b 80 kilometr\u016f dlouh\u00e9 podvodn\u00ed bari\u00e9ry, kter\u00e1 by m\u011bla zabr\u00e1nit vniknut\u00ed tepl\u00e9 mo\u0159sk\u00e9 vody. Projekt je v sou\u010dasn\u00e9 dob\u011b ve f\u00e1zi v\u00fdzkumu a v\u00fdvoje. Odhady nazna\u010duj\u00ed, \u017ee \u00fapln\u00e1 ztr\u00e1ta ledovce Thwaites by mohla zv\u00fd\u0161it hladinu mo\u0159e p\u0159ibli\u017en\u011b o 65 centimetr\u016f. Kdy a v jak\u00e9m \u010dasov\u00e9m horizontu by k tomu v\u0161ak mohlo doj\u00edt, zdaleka nen\u00ed jasn\u00e9.<\/span><\/p>\n

Nezastaviteln\u00e9 t\u00e1n\u00ed<\/span><\/h3>\n

Nov\u00e1 studie Britsk\u00e9ho antarktick\u00e9ho pr\u016fzkumu nyn\u00ed ukazuje, \u017ee historie ledovce Thwaites sah\u00e1 mnohem d\u00e1le ne\u017e sou\u010dasn\u00e1 debata o zm\u011bn\u011b klimatu. Glaciolo\u017eka Rosie Williamsov\u00e1 a jej\u00ed kolegov\u00e9 cht\u011bli v\u011bd\u011bt, jak\u00fd vliv maj\u00ed minul\u00e9 klimatick\u00e9 zm\u011bny na dne\u0161n\u00ed \u00fabytek ledu. Za t\u00edmto \u00fa\u010delem nastavili t\u00e1n\u00ed na z\u00e1kladn\u011b plovouc\u00edch ledov\u00fdch \u0161elf\u016f na nulu ve t\u0159ech nez\u00e1visl\u00fdch modelech ledov\u00fdch \u0161t\u00edt\u016f. Teoretick\u00fd extr\u00e9mn\u00ed p\u0159\u00edpad, kter\u00fd ve skute\u010dnosti nem\u016f\u017ee nastat. U sousedn\u00edho ledovce Pine Island se trend b\u011bhem n\u011bkolika let obr\u00e1til. Znovu z\u00edskal ledovou hmotu a za\u010dal se zv\u011bt\u0161ovat sm\u011brem ke sv\u00e9mu p\u016fvodn\u00edmu rozsahu. Ledovec Thwaites reagoval zcela odli\u0161n\u011b. Ve v\u0161ech t\u0159ech modelech led d\u00e1le ztr\u00e1cel po cel\u00fdch 150 let. Zat\u00edmco \u00fabytek hmoty se postupn\u011b sni\u017eoval, b\u011bhem cel\u00e9ho sledovan\u00e9ho obdob\u00ed nep\u0159estal.<\/span><\/p>\n

Studie publikovan\u00e1 v \u010dasopise Geophysical Research Letters 25. \u010dervence 2026 nese n\u00e1zev \u201e <\/span>\u00dabytek hmoty z ledovce Thwaites pokra\u010duje i bez t\u00e1n\u00ed oce\u00e1nu<\/span><\/a> \u201c. V\u011bdci p\u0159ipisuj\u00ed prob\u00edhaj\u00edc\u00ed \u00fastup, alespo\u0148 z\u010d\u00e1sti, p\u0159edchoz\u00edmu naru\u0161en\u00ed. Ji\u017e ve 40. a 50. letech 20. stolet\u00ed ztratily Thwaites a Pine Island kl\u00ed\u010dov\u00e1 kotvi\u0161t\u011b na mo\u0159sk\u00e9m dn\u011b. To umo\u017enilo velk\u00fdm mas\u00e1m ledu neru\u0161en\u011b proudit sm\u011brem k oce\u00e1nu. V p\u0159\u00edpad\u011b Pine Island lze tento d\u0159\u00edv\u011bj\u0161\u00ed stav v modelech aproximovat vypnut\u00edm t\u00e1n\u00ed oce\u00e1nu. Thwaites se v\u0161ak zm\u011bnil tak drasticky, \u017ee i za t\u011bchto extr\u00e9mn\u00edch podm\u00ednek led d\u00e1le ztr\u00e1c\u00ed ji\u017e v\u00edce ne\u017e stolet\u00ed a p\u016fl. Neobnov\u00ed sv\u016fj p\u016fvodn\u00ed rozsah. Jakmile je tedy \u00fastup ledovc\u016f zah\u00e1jen, m\u016f\u017ee pokra\u010dovat po generace, i kdy\u017e p\u016fvodn\u00ed hnac\u00ed s\u00edla zmiz\u00ed.<\/span><\/p>\n

Historick\u00e9 naru\u0161en\u00ed m\u00edsto klimatick\u00fdch zm\u011bn<\/span><\/h3>\n

Tato \u010dasov\u00e1 souvislost je v medi\u00e1ln\u00edm zpravodajstv\u00ed o klimatu \u010dasto p\u0159ehl\u00ed\u017eena. Nap\u0159\u00edklad Euronews v\u00fdslovn\u011b p\u0159ipisuje t\u00e1n\u00ed Thwaites klimatick\u00fdm zm\u011bn\u00e1m vyvolan\u00fdm \u010dlov\u011bkem. Brit\u0161t\u00ed v\u011bdci v\u0161ak ukazuj\u00ed, \u017ee p\u0159inejmen\u0161\u00edm v\u00fdznamn\u00e1 \u010d\u00e1st dne\u0161n\u00edho \u00fabytku ledu pramen\u00ed z historick\u00e9 poruchy. Jejich studie jim neumo\u017e\u0148uje kvantifikovat p\u0159esn\u00e9 pod\u00edly jednotliv\u00fdch faktor\u016f. Zd\u00e1 se v\u0161ak, \u017ee toto rozli\u0161en\u00ed je pro senzacechtiv\u00e9 titulky m\u00e1lo zaj\u00edmav\u00e9. Oce\u00e1nsk\u00e9 proudy u z\u00e1padn\u00ed Antarktidy maj\u00ed tak\u00e9 sv\u00e9 vlastn\u00ed vzorce. V\u011bdci pod veden\u00edm Brendona Daminiho zkoumali, pro\u010d se cirkumpol\u00e1rn\u00ed hlubok\u00e1 voda mezi 90. a 2010. l\u00e9ty region\u00e1ln\u011b oteplovala. V z\u00e1padn\u00edm Amundsenov\u011b mo\u0159i zaznamenali pr\u016fm\u011brn\u00fd n\u00e1r\u016fst teploty o p\u0159ibli\u017en\u011b 0,10 stupn\u011b Celsia. Jinde se v\u0161ak vodn\u00ed masy ochladily.<\/span><\/p>\n

Studie<\/span><\/a> publikovan\u00e1 v \u010dasopise Journal of Geophysical Research: Oceans p\u0159ipisuje p\u0159ibli\u017en\u011b 90 procent analyzovan\u00e9ho oteplov\u00e1n\u00ed hlubok\u00e9 vody mimo kontinent\u00e1ln\u00ed \u0161elf zv\u00fd\u0161en\u00e9mu bo\u010dn\u00edmu transportu tepla. Zm\u011bn\u011bn\u00e9 z\u00e1padn\u00ed v\u011btry, siln\u011bj\u0161\u00ed Ross\u016fv kruh a v\u00fdm\u011bna vodn\u00edch mas v Antarktick\u00e9m cirkumpol\u00e1rn\u00edm proudu v\u00fdznamn\u011b ovlivnily rozlo\u017een\u00ed tepla. Naproti tomu posun hlavn\u00ed hranice proud\u016f sm\u011brem na jih p\u0159edstavoval pouze asi deset procent. To pom\u00e1h\u00e1 vysv\u011btlit, pro\u010d se teploty vody u pob\u0159e\u017e\u00ed Antarktidy region\u00e1ln\u011b tolik li\u0161\u00ed. V\u011btry poh\u00e1n\u011bj\u00ed obrovsk\u00e9 oce\u00e1nsk\u00e9 proudy a jejich tok \u010d\u00e1ste\u010dn\u011b ur\u010duje, kter\u00e9 vodn\u00ed masy dos\u00e1hnou ledovc\u016f. Svou roli hraje i slo\u017een\u00ed mo\u0159sk\u00e9ho dna.<\/span><\/p>\n

I zde hraje roli n\u011bkolik faktor\u016f. A p\u0159esto se mainstreamov\u00e1 m\u00e9dia a politici nad\u00e1le zapojuj\u00ed do obvykl\u00e9 klimatick\u00e9 alarmistick\u00e9 propagandy. Jejich vlastn\u00ed narativy jsou pro tyto lidi zjevn\u011b d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e realita. V\u011bdeck\u00e9 poznatky hraj\u00ed men\u0161\u00ed roli ne\u017e p\u0159\u00edle\u017eitost vyu\u017e\u00edt p\u0159irozen\u00e9ho v\u00fdvoje k neust\u00e1l\u00e9mu klimatick\u00e9mu alarmismu.<\/span><\/p>\n

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Ledovec Thwaites v z\u00e1padn\u00ed Antarktid\u011b bude i nad\u00e1le ztr\u00e1cet led po dobu 150 let, i…<\/p>\n","protected":false},"author":2,"featured_media":119508,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[2692,873,1213,11921],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/119507"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=119507"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/119507\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/119508"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=119507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=119507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=119507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}