{"id":34012,"date":"2023-08-14T01:00:05","date_gmt":"2023-08-13T23:00:05","guid":{"rendered":"http:\/\/www.infokuryr.cz\/n\/?p=34012"},"modified":"2023-08-13T16:32:46","modified_gmt":"2023-08-13T14:32:46","slug":"studie-soucasna-hladina-more-nejnizsi-za-8-000-let","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2023\/08\/14\/studie-soucasna-hladina-more-nejnizsi-za-8-000-let\/","title":{"rendered":"Studie: Sou\u010dasn\u00e1 hladina mo\u0159e nejni\u017e\u0161\u00ed za 8 000 let"},"content":{"rendered":"
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Kdy\u017e alarmist\u00e9 varuj\u00ed p\u0159ed stoupaj\u00edc\u00ed hladinou mo\u0159\u00ed, zapom\u00ednaj\u00ed upozornit na d\u016fle\u017eitou skute\u010dnost: Podle dvou nov\u011b publikovan\u00fdch studi\u00ed je sou\u010dasn\u00e1 hladina mo\u0159\u00ed nejni\u017e\u0161\u00ed za zhruba 8 000 let.\u00a0Tehdy byla o dva a\u017e \u0161est metr\u016f vy\u0161\u0161\u00ed ne\u017e dnes.\u00a0A to s v\u00fdrazn\u011b ni\u017e\u0161\u00ed koncentrac\u00ed CO2 ve vzduchu.<\/span><\/strong><\/p>\n

V\u011bd\u011bli jste, \u017ee zhruba p\u0159ed 6 000 a\u017e 8 000 lety, b\u011bhem st\u0159edn\u00edho holoc\u00e9nu, byla hladina mo\u0159e o dva a\u017e \u0161est metr\u016f v\u00fd\u0161e ne\u017e dnes, v z\u00e1vislosti na regionu?\u00a0Vzhledem k tomu, \u017ee jsme vlastn\u011b na konci chladn\u00e9ho obdob\u00ed, to vlastn\u011b nen\u00ed tak p\u0159ekvapiv\u00e9.\u00a0Je\u0161t\u011b v\u00edce: Tehdy se hladina CO2 v atmosf\u00e9\u0159e pohybovala kolem 265 a\u017e 280 \u010d\u00e1stic na milion (ppm), dnes je to kolem 420 ppm.\u00a0<\/span>Ale i p\u0159es v\u00fdrazn\u011b ni\u017e\u0161\u00ed koncentraci CO2 ve vzduchu bylo tehdy v\u00fdrazn\u011b tepleji ne\u017e dnes<\/span><\/strong> a pol\u00e1rn\u00ed ledov\u00e9 \u010depice m\u011bly tak\u00e9 men\u0161\u00ed ledovou pokr\u00fdvku, ne\u017e v sou\u010dasnosti zn\u00e1me.<\/span><\/p>\n

Tehdej\u0161\u00ed v\u00fdrazn\u011b vy\u0161\u0161\u00ed hladinu mo\u0159e ur\u010dila mimo jin\u00e9\u00a0<\/span>studie<\/span><\/a>\u00a0ve st\u0159edn\u00ed Patagonii v Argentin\u011b.\u00a0Podle toho byla kolem \u0161esti metr\u016f nad \u00farovn\u00ed, na kter\u00e9 je nyn\u00ed.\u00a0To je docela velk\u00fd rozd\u00edl.\u00a0\u00dadaje tak\u00e9 ukazuj\u00ed, \u017ee hladiny mo\u0159\u00ed v regionu\u00a0<\/span>byly a\u017e o 110 metr\u016f ni\u017e\u0161\u00ed ne\u017e dnes b\u011bhem posledn\u00ed doby ledov\u00e9,<\/span><\/strong>\u00a0pot\u00e9 v\u00fdrazn\u011b stouply, jak se Zem\u011b oteplovala a\u017e do doby p\u0159ed 8 000 lety a od t\u00e9 doby za\u017e\u00edv\u00e1 pomal\u00fd pokles na sou\u010dasnou \u00farove\u0148.<\/span><\/p>\n

Trend potvrzuj\u00ed i \u200b\u200bdata z Japonska<\/span><\/h3>\n

Podobn\u00e9 \u00fadaje lze nal\u00e9zt tak\u00e9 na severn\u00ed polokouli.\u00a0<\/span>Ned\u00e1vn\u00e1 studie<\/span><\/a>\u00a0z Japonska ukazuje, \u017ee b\u011bhem tohoto obdob\u00ed st\u0159edn\u00edho holoc\u00e9nu byly relativn\u00ed hladiny mo\u0159\u00ed asi o dva a\u017e p\u011bt metr\u016f vy\u0161\u0161\u00ed ne\u017e dnes, b\u011bhem st\u0159edov\u011bk\u00e9ho tepl\u00e9ho obdob\u00ed na \u00farovni asi 1 a\u017e 1,5 metru nad sou\u010dasnou hladinou mo\u0159e a\u00a0pot\u00e9\u00a0<\/span>Jin\u00fdmi slovy, i zde \u00fadaje p\u016fsobiv\u011b ukazuj\u00ed, \u017ee hladina mo\u0159e sp\u00ed\u0161e kles\u00e1 ne\u017e stoup\u00e1.<\/span><\/strong><\/p>\n

Na druhou stranu tyto dv\u011b studie tak\u00e9 ukazuj\u00ed, \u017ee glob\u00e1ln\u00ed oteplov\u00e1n\u00ed v na\u0161\u00ed dob\u011b je vlastn\u011b jen korekce a \u017ee op\u011btovn\u00fd vzestup hladiny mo\u0159\u00ed v d\u016fsledku t\u00e1n\u00ed ledovc\u016f a ledovc\u016f nen\u00ed nic zvl\u00e1\u0161tn\u00edho.\u00a0<\/span>Tyto dv\u011b studie tak\u00e9 ukazuj\u00ed, \u017ee CO2 nelze identifikovat jako prim\u00e1rn\u00ed faktor vy\u0161\u0161\u00edch teplot.\u00a0<\/span><\/strong>Jak jinak se stalo, \u017ee tehdy, p\u0159ed 6 000 a\u017e 8 000 lety, byly nejen pr\u016fm\u011brn\u00e9 teploty v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e dnes, ale i hladina mo\u0159e byla o p\u00e1r metr\u016f n\u00ed\u017ee ne\u017e dnes?<\/span><\/p>\n

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Kdy\u017e alarmist\u00e9 varuj\u00ed p\u0159ed stoupaj\u00edc\u00ed hladinou mo\u0159\u00ed, zapom\u00ednaj\u00ed upozornit na d\u016fle\u017eitou skute\u010dnost: Podle dvou nov\u011b…<\/p>\n","protected":false},"author":2,"featured_media":10703,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[2692,5663,1144,5267,839],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/34012"}],"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=34012"}],"version-history":[{"count":1,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/34012\/revisions"}],"predecessor-version":[{"id":34013,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/34012\/revisions\/34013"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/10703"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=34012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=34012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=34012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}