{"id":51588,"date":"2024-04-15T00:31:03","date_gmt":"2024-04-14T22:31:03","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=51588"},"modified":"2024-04-14T16:11:10","modified_gmt":"2024-04-14T14:11:10","slug":"tri-dalsi-studie-ukazuji-ze-v-minulosti-bylo-casto-tepleji-nez-dnes","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2024\/04\/15\/tri-dalsi-studie-ukazuji-ze-v-minulosti-bylo-casto-tepleji-nez-dnes\/","title":{"rendered":"T\u0159i dal\u0161\u00ed studie ukazuj\u00ed, \u017ee v minulosti bylo \u010dasto tepleji ne\u017e dnes"},"content":{"rendered":"
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Sou\u010dasn\u00e9 tepl\u00e9 obdob\u00ed m\u00e1 na sv\u011bdom\u00ed \u010dlov\u011bk a CO2. Dal\u0161\u00ed \u00fadaje z minul\u00fdch stolet\u00ed a tis\u00edcilet\u00ed v\u0161ak ukazuj\u00ed, \u017ee takov\u00e9 teplotn\u00ed v\u00fdkyvy jsou zcela p\u0159irozen\u00e9. Zam\u011b\u0159en\u00ed na stopov\u00fd plyn je zjevn\u011b zav\u00e1d\u011bj\u00edc\u00ed p\u0159\u00edstup.<\/span><\/strong><\/p>\n

Glob\u00e1ln\u00ed klima podl\u00e9h\u00e1 od nepam\u011bti velk\u00fdm v\u00fdkyv\u016fm. To se za posledn\u00edch p\u00e1r tis\u00edc let p\u0159\u00edli\u0161 nezm\u011bnilo. Co se v\u0161ak zm\u011bnilo, je to, jak se k tomu postav\u00edme. V minulosti za to lid\u00e9 obvi\u0148ovali bohy, dnes se obvi\u0148uj\u00ed sami. Existuje n\u011bkolik r\u016fzn\u00fdch faktor\u016f, kter\u00e9 spolupracuj\u00ed a hraj\u00ed svou roli. V\u010detn\u011b slune\u010dn\u00edch cykl\u016f a sope\u010dn\u00e9 \u010dinnosti. V tomto ohledu jsou vypov\u00eddaj\u00edc\u00ed i t\u0159i nov\u00e9 v\u011bdeck\u00e9 studie, kter\u00e9 ukazuj\u00ed v\u011bt\u0161\u00ed klimatick\u00e9 v\u00fdkyvy i bez pr\u016fmyslu a masov\u00e9ho spalov\u00e1n\u00ed fosiln\u00edch paliv.<\/span><\/p>\n

Nap\u0159\u00edklad\u00a0<\/span>studie o dynamice klimatu na Azorsk\u00fdch ostrovech v pozdn\u00edm holoc\u00e9nu<\/span><\/a>\u00a0. V souladu s t\u00edm jsou pr\u016fm\u011brn\u00e9 \u010dervencov\u00e9 teploty tam aktu\u00e1ln\u011b 10 a\u017e 11 stup\u0148\u016f Celsia. To je o 1 a\u017e 2 stupn\u011b v\u00edce ne\u017e b\u011bhem \u201emal\u00e9 doby ledov\u00e9\u201c (1750-1800), kdy bylo nejchladn\u011bj\u0161\u00ed obdob\u00ed za posledn\u00edch 2 000 let zaznamen\u00e1no s teplotou kolem 9,1 stupn\u011b Celsia. Podle studi\u00ed Raposeiro et al. v\u0161ak byly pr\u016fm\u011brn\u00e9 \u010dervencov\u00e9 teploty tam b\u011bhem tzv. \u201est\u0159edov\u011bk\u00e9 klimatick\u00e9 anom\u00e1lie\u201c (tedy tepl\u00e9ho obdob\u00ed) 13 a\u017e 15 stup\u0148\u016f Celsia \u2013 tedy 3 a\u017e 4 stupn\u011b nad dne\u0161n\u00edmi \u00farovn\u011bmi. A to v\u0161e bez pr\u016fmyslu a masov\u00e9ho vyu\u017e\u00edv\u00e1n\u00ed fosiln\u00edch paliv lidstvem.<\/span><\/p>\n

Jezero a okoln\u00ed oblast na pacifick\u00e9m severoz\u00e1pad\u011b Spojen\u00fdch st\u00e1t\u016f, Gold Lake, bylo tak\u00e9 zkoum\u00e1no na klimatick\u00e9 zm\u011bny.\u00a0<\/span>Publikovan\u00e1 pr\u00e1ce<\/span><\/a> mimo jin\u00e9 uv\u00e1d\u00ed, \u017ee p\u0159ed zhruba dv\u011bma a p\u016fl tis\u00edci lety byly teploty o 1,5 stupn\u011b vy\u0161\u0161\u00ed. Za posledn\u00edch 1900 let (co\u017e zahrnuje jak st\u0159edov\u011bk\u00e9 tepl\u00e9 obdob\u00ed, tak malou dobu ledovou) se v\u017edy pohybovaly mezi 12,2 a 12,6 stupni Celsia. Ne\u0161lo tedy o \u017e\u00e1dn\u00e9 skute\u010dn\u011b v\u00fdrazn\u00e9 zm\u011bny.<\/span><\/p>\n

Dal\u0161\u00ed\u00a0<\/span>nov\u011b publikovan\u00e1 studie<\/span><\/a>\u00a0zkoumala jezern\u00ed sedimenty v severn\u00edm Finsku. \u00dadaje zde zve\u0159ejn\u011bn\u00e9 nazna\u010duj\u00ed, \u017ee modern\u00ed teploty pat\u0159\u00ed k nejchladn\u011bj\u0161\u00edm za posledn\u00edch 8 000 let. V souladu s t\u00edm bylo mezi 7 000 a 3 000 lety a mezi 1 500 a 1 200 lety, alespo\u0148 v t\u00e9to oblasti, v\u00fdrazn\u011b teplej\u0161\u00ed ne\u017e dnes.<\/span><\/p>\n

Tyto nov\u00e9 studie objas\u0148uj\u00ed, \u017ee klima je mnohem slo\u017eit\u011bj\u0161\u00ed, ne\u017e jsme p\u0159esv\u011bd\u010deni. Jak jsem ji\u017e\u00a0objasnil\u00a0ve sv\u00e9 knize \u201e\u00a0<\/span>CO2 nen\u00ed n\u00e1\u0161 nep\u0159\u00edtel<\/span><\/a>\u00a0\u201c, hraje roli mnoho r\u016fzn\u00fdch faktor\u016f. Tyto v\u00fdsledky studie podporuj\u00ed mnoho p\u0159edchoz\u00edch zji\u0161t\u011bn\u00ed, \u017ee mezi glob\u00e1ln\u00edmi teplotami a koncentracemi CO2 v atmosf\u00e9\u0159e existuje pouze omezen\u00e1 kauzalita.<\/span><\/p>\n

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Sou\u010dasn\u00e9 tepl\u00e9 obdob\u00ed m\u00e1 na sv\u011bdom\u00ed \u010dlov\u011bk a CO2. Dal\u0161\u00ed \u00fadaje z minul\u00fdch stolet\u00ed a…<\/p>\n","protected":false},"author":2,"featured_media":51589,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[873,794,839],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/51588"}],"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=51588"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/51588\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/51589"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=51588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=51588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=51588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}