{"id":17668,"date":"2019-02-15T13:34:57","date_gmt":"2019-02-15T13:34:57","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=17668"},"modified":"2019-02-15T13:34:57","modified_gmt":"2019-02-15T13:34:57","slug":"evidence-of-global-warming-in-ancient-earth","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/earth-science\/evidence-of-global-warming-in-ancient-earth\/","title":{"rendered":"Starov\u011bk\u00e9 d\u016fkazy glob\u00e1ln\u00edho oteplov\u00e1n\u00ed z minulosti Zem\u011b"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Den 1: Geologick\u00e1 cesta zp\u011bt v \u010dase<\/h2>\n\n<h2 class=\"wp-block-heading\">D\u016fkazy glob\u00e1ln\u00edho oteplov\u00e1n\u00ed na d\u00e1vn\u00e9 Zemi<\/h2>\n\n<p>P\u0159ed 55 miliony let pro\u0161la Zem\u011b obdob\u00edm intenzivn\u00edho glob\u00e1ln\u00edho oteplov\u00e1n\u00ed zn\u00e1m\u00fdm jako paleoc\u00e9n-eoc\u00e9nn\u00ed teplotn\u00ed maximum (PETM). Tato ud\u00e1lost zanechala sv\u00e9 stopy v z\u00e1znamech zkamen\u011blin a poskytla cenn\u00e9 poznatky o dopadech zm\u011bny klimatu na ekosyst\u00e9my.<\/p>\n\n<h2 class=\"wp-block-heading\">Bighornsk\u00e1 p\u00e1nev: Pokladnice zkamen\u011blin<\/h2>\n\n<p>Paleontolog Scott Wing se vydal na pe\u010dliv\u00e9 p\u00e1tr\u00e1n\u00ed po zkamen\u011blin\u00e1ch v Bighornsk\u00e9 p\u00e1nvi ve Wyomingu. Po 11 letech tvrd\u00e9 pr\u00e1ce objevil zkamen\u011bl\u00e9 listy, kter\u00e9 odhalily d\u016fkazy o PETM. Tyto zkamen\u011bliny poskytuj\u00ed pohled do d\u00e1vn\u00e9 fl\u00f3ry a dramatick\u00fdch zm\u011bn, ke kter\u00fdm do\u0161lo b\u011bhem tohoto obdob\u00ed glob\u00e1ln\u00edho oteplov\u00e1n\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Role Smithsonianu ve v\u011bdeck\u00fdch objevech<\/h2>\n\n<p>Smithsonova instituce, uzn\u00e1van\u00e9 centrum v\u00fdzkumu a vzd\u011bl\u00e1v\u00e1n\u00ed, sehr\u00e1la kl\u00ed\u010dovou roli v podpo\u0159e studia PETM. Tajemn\u00edk Smithsonianu G. Wayne Clough nav\u0161t\u00edvil Bighornskou p\u00e1nev, aby sledoval pr\u00e1ci Scotta Winga a z\u00edskal informace z prvn\u00ed ruky o d\u016fkazech d\u00e1vn\u00e9 zm\u011bny klimatu.<\/p>\n\n<h2 class=\"wp-block-heading\">Fosiln\u00ed stopy minul\u00e9ho klimatu<\/h2>\n\n<p>Zkamen\u011bliny PETM poskytuj\u00ed r\u016fzn\u00e9 d\u016fkazy o v\u00fdskytu intenzivn\u00edho glob\u00e1ln\u00edho oteplov\u00e1n\u00ed. Pat\u0159\u00ed mezi n\u011b:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Zv\u00fd\u0161en\u00e9 hladiny sklen\u00edkov\u00fdch plyn\u016f<\/li>\n<li>Roz\u0161\u00ed\u0159en\u00e9 tropick\u00e9 zem\u011bpisn\u00e9 \u0161\u00ed\u0159ky<\/li>\n<li>Zmizen\u00ed mal\u00fdch ledov\u00fdch \u010depic<\/li>\n<\/ul>\n\n<p>P\u0159\u00edtomnost rostlinn\u00fdch zkamen\u011blin, jako jsou zkamen\u011bl\u00e9 listy, poskytuje cenn\u00e9 informace o teplot\u011b, sr\u00e1\u017ek\u00e1ch a stavu ekosyst\u00e9m\u016f b\u011bhem PETM.<\/p>\n\n<h2 class=\"wp-block-heading\">Vytrvalost v\u011bdce<\/h2>\n\n<p>Objev zkamen\u011blin PETM Scottem Wingem zd\u016fraz\u0148uje v\u00fdznam vytrvalosti a odhodl\u00e1n\u00ed ve v\u011bdeck\u00e9m v\u00fdzkumu. Navzdory \u010detn\u00fdm v\u00fdzv\u00e1m z\u016fstal neochv\u011bjn\u00fd ve sv\u00e9m hled\u00e1n\u00ed pozn\u00e1n\u00ed a nakonec v\u00fdznamn\u011b p\u0159isp\u011bl k na\u0161emu ch\u00e1p\u00e1n\u00ed zm\u011bny klimatu.<\/p>\n\n<h2 class=\"wp-block-heading\">Dopad na ekosyst\u00e9my<\/h2>\n\n<p>PETM m\u011blo hlubok\u00fd dopad na ekosyst\u00e9my, co\u017e vedlo ke zm\u011bn\u00e1m v po\u0159ad\u00ed druh\u016f a vzniku nov\u00fdch forem \u017eivota. Z\u00e1znam zkamen\u011blin poskytuje d\u016fkazy o t\u011bchto zm\u011bn\u00e1ch, v\u010detn\u011b:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>P\u0159izp\u016fsoben\u00ed rostlin vy\u0161\u0161\u00edm teplot\u00e1m<\/li>\n<li>Migrace druh\u016f do nov\u00fdch stanovi\u0161\u0165<\/li>\n<li>Vznik prim\u00e1t\u016f, na\u0161ich evolu\u010dn\u00edch p\u0159edk\u016f<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Implikace pro sou\u010dasnost<\/h2>\n\n<p>Studium PETM poskytuje cenn\u00e9 ponau\u010den\u00ed pro pochopen\u00ed potenci\u00e1ln\u00edch d\u016fsledk\u016f sou\u010dasn\u00e9 zm\u011bny klimatu. Zkoum\u00e1n\u00edm minulosti Zem\u011b mohou v\u011bdci z\u00edskat poznatky o mo\u017en\u00fdch dopadech stoupaj\u00edc\u00edch teplot, emis\u00ed sklen\u00edkov\u00fdch plyn\u016f a zm\u011bn v ekosyst\u00e9mech.<\/p>\n\n<h2 class=\"wp-block-heading\">Za\u017e\u00edt Bighornskou p\u00e1nev<\/h2>\n\n<p>N\u00e1v\u0161t\u011bva tajemn\u00edka Clougha v Bighornsk\u00e9 p\u00e1nvi nab\u00eddla jedine\u010dnou p\u0159\u00edle\u017eitost sledovat pr\u00e1ci v\u011bdc\u016f na vlastn\u00ed o\u010di. Pozoroval m\u00edsta vykop\u00e1vek zkamen\u011blin, z\u00edskal poznatky o v\u00fdzkumn\u00e9m procesu a dozv\u011bd\u011bl se o d\u016fle\u017eitosti zachov\u00e1n\u00ed p\u0159\u00edrodn\u00ed historie pro budouc\u00ed generace.<\/p>\n\n<h2 class=\"wp-block-heading\">Odkaz v\u011bdeck\u00fdch objev\u016f<\/h2>\n\n<p>Objev zkamen\u011blin PETM Scottem Wingem i nad\u00e1le inspiruje mlad\u00e9 v\u011bdce a p\u0159isp\u00edv\u00e1 k na\u0161emu ch\u00e1p\u00e1n\u00ed historie Zem\u011b a v\u00fdzv\u00e1m, kter\u00e9 p\u0159in\u00e1\u0161\u00ed zm\u011bna klimatu. Smithsonova instituce z\u016fst\u00e1v\u00e1 odhodl\u00e1na podporovat v\u011bdeck\u00fd v\u00fdzkum a \u0161\u00ed\u0159it znalosti o na\u0161em p\u0159irozen\u00e9m sv\u011bt\u011b.<\/p>","protected":false},"excerpt":{"rendered":"<p>Den 1: Geologick\u00e1 cesta zp\u011bt v \u010dase D\u016fkazy glob\u00e1ln\u00edho oteplov\u00e1n\u00ed na d\u00e1vn\u00e9 Zemi P\u0159ed 55 miliony let pro\u0161la Zem\u011b obdob\u00edm intenzivn\u00edho glob\u00e1ln\u00edho oteplov\u00e1n\u00ed zn\u00e1m\u00fdm jako paleoc\u00e9n-eoc\u00e9nn\u00ed teplotn\u00ed maximum (PETM). Tato&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[136,239,207,137,141,613,34],"class_list":["post-17668","post","type-post","status-publish","format-standard","hentry","category-earth-science","tag-evolution","tag-fossils","tag-geology","tag-paleontology","tag-natural-history","tag-scientific-discovery","tag-climate-change"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=17668"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17668\/revisions"}],"predecessor-version":[{"id":17669,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17668\/revisions\/17669"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=17668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=17668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=17668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}