{"id":11297,"date":"2022-12-16T16:51:57","date_gmt":"2022-12-16T16:51:57","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=11297"},"modified":"2022-12-16T16:51:57","modified_gmt":"2022-12-16T16:51:57","slug":"methane-hydrates-potential-climate-change-threat","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/climate-science\/methane-hydrates-potential-climate-change-threat\/","title":{"rendered":"A met\u00e1nhidr\u00e1tok olvad\u00e1sa: a kl\u00edmav\u00e1ltoz\u00e1s potenci\u00e1lis vesz\u00e9lye"},"content":{"rendered":"<h2 class=\"wp-block-heading\">A met\u00e1n-hidr\u00e1tok: A kl\u00edmav\u00e1ltoz\u00e1s lehets\u00e9ges vesz\u00e9lyforr\u00e1sai<\/h2>\n\n<h2 class=\"wp-block-heading\">Mik azok a met\u00e1n-hidr\u00e1tok?<\/h2>\n\n<p>A met\u00e1n-hidr\u00e1tok a met\u00e1n g\u00e1zt tartalmaz\u00f3, v\u00edzmolekul\u00e1k ketrec\u00e9be z\u00e1rt, befagyott lerak\u00f3d\u00e1sok. A vil\u00e1g partvid\u00e9kein hatalmas mennyis\u00e9gben megtal\u00e1lhat\u00f3ak, t\u00f6bbek k\u00f6z\u00f6tt az Amerikai Egyes\u00fclt \u00c1llamok keleti partjain\u00e1l is.<\/p>\n\n<h2 class=\"wp-block-heading\">A met\u00e1n-hidr\u00e1tok olvad\u00e1sa<\/h2>\n\n<p>A k\u00f6zelm\u00faltbeli tanulm\u00e1nyok kimutatt\u00e1k, hogy ezek a met\u00e1n-hidr\u00e1tok az \u00f3ce\u00e1nok h\u0151m\u00e9rs\u00e9klet\u00e9nek emelked\u00e9se miatt olvadnak. Ez az olvad\u00e1si folyamat nagym\u00e9rt\u00e9kben megn\u00f6velheti az atmoszf\u00e9r\u00e1ba ker\u00fcl\u0151 met\u00e1n mennyis\u00e9g\u00e9t, amely egy er\u0151s \u00fcvegh\u00e1zhat\u00e1s\u00fa g\u00e1z.<\/p>\n\n<h2 class=\"wp-block-heading\">A met\u00e1n-kibocs\u00e1t\u00e1s hat\u00e1sai<\/h2>\n\n<p>A met\u00e1n er\u0151sebb \u00fcvegh\u00e1zhat\u00e1s\u00fa g\u00e1z, mint a sz\u00e9n-dioxid, ami azt jelenti, hogy m\u00e9g egy kis mennyis\u00e9g\u0171 kibocs\u00e1t\u00e1s is jelent\u0151s hat\u00e1ssal lehet a glob\u00e1lis felmeleged\u00e9sre. Ha nagyar\u00e1ny\u00fa met\u00e1n-kibocs\u00e1t\u00e1s t\u00f6rt\u00e9nik, az egy \u00f6rd\u00f6gi k\u00f6rh\u00f6z vezethet: a felmeleged\u00e9s, a tov\u00e1bbi hidr\u00e1t olvad\u00e1s \u00e9s m\u00e9g nagyobb felmeleged\u00e9s.<\/p>\n\n<h2 class=\"wp-block-heading\">A met\u00e1n-hidr\u00e1tok stabilit\u00e1sa<\/h2>\n\n<p>B\u00e1r a met\u00e1n-hidr\u00e1tok olvad\u00e1sa aggodalomra ad okot, fontos megjegyezni, hogy a vil\u00e1g g\u00e1zhidr\u00e1t-k\u00e9szleteinek nagy r\u00e9sze v\u00e1rhat\u00f3an stabil marad a k\u00f6vetkez\u0151 n\u00e9h\u00e1ny ezer \u00e9vben. Azonban egyes lerak\u00f3d\u00e1sok, k\u00fcl\u00f6n\u00f6sen azok, amelyek a gyorsan meleged\u0151 \u00f3ce\u00e1ni h\u0151m\u00e9rs\u00e9klet\u0171 ter\u00fcleteken tal\u00e1lhat\u00f3k, instabill\u00e1 v\u00e1lhatnak, \u00e9s met\u00e1nt bocs\u00e1thatnak ki.<\/p>\n\n<h2 class=\"wp-block-heading\">A met\u00e1n-kibocs\u00e1t\u00e1s \u00fatvonalai<\/h2>\n\n<p>Ahhoz, hogy a met\u00e1n g\u00e1z el\u00e9rje a l\u00e9gk\u00f6rt, \u00e9s hozz\u00e1j\u00e1ruljon a glob\u00e1lis felmeleged\u00e9shez, \u00e1t kell bubor\u00e9kolnia a v\u00edzoszlopon. Azonban a met\u00e1n jelent\u0151s r\u00e9sze felold\u00f3dik a hideg \u00f3ce\u00e1nv\u00edzben ezen a folyamaton kereszt\u00fcl, cs\u00f6kkentve azt a mennyis\u00e9get, amely t\u00e9nylegesen el\u00e9ri a felsz\u00ednt.<\/p>\n\n<h2 class=\"wp-block-heading\">Bizonytalans\u00e1gok \u00e9s monitoroz\u00e1s<\/h2>\n\n<p>A tud\u00f3sok m\u00e9g mindig bizonytalanok abban, hogy pontosan mennyi met\u00e1n szabadulhat fel az olvad\u00f3 hidr\u00e1tokb\u00f3l, \u00e9s hogy ennek milyen lehets\u00e9ges hat\u00e1sai lehetnek a kl\u00edmav\u00e1ltoz\u00e1sra. A kutat\u00e1si \u00e9s megfigyel\u00e9si er\u0151fesz\u00edt\u00e9sek elengedhetetlenek ezeknek a folyamatoknak a jobb meg\u00e9rt\u00e9s\u00e9hez \u00e9s az enyh\u00edt\u00e9si strat\u00e9gi\u00e1k kidolgoz\u00e1s\u00e1hoz.<\/p>\n\n<h2 class=\"wp-block-heading\">T\u00f6rt\u00e9nelmi anal\u00f3gia<\/h2>\n\n<p>\u00d6tvenhat milli\u00f3 \u00e9vvel ezel\u0151tt a m\u00e9lytengeri t\u00e1rol\u00f3kb\u00f3l sz\u00e1rmaz\u00f3 met\u00e1n hirtelen felszabadul\u00e1sa hozz\u00e1j\u00e1rult a bolyg\u00f3 egyik legnagyobb t\u00f6meges kihal\u00e1s\u00e1hoz. Ez az esem\u00e9ny eml\u00e9keztet a nagyar\u00e1ny\u00fa met\u00e1n-kibocs\u00e1t\u00e1s lehets\u00e9ges k\u00f6vetkezm\u00e9nyeire.<\/p>\n\n<h2 class=\"wp-block-heading\">Az enyh\u00edt\u00e9s fontoss\u00e1ga<\/h2>\n\n<p>A met\u00e1n-kibocs\u00e1t\u00e1s megakad\u00e1lyoz\u00e1sa vagy m\u00e9rs\u00e9kl\u00e9se az olvad\u00f3 hidr\u00e1tokb\u00f3l d\u00f6nt\u0151 fontoss\u00e1g\u00fa a kl\u00edmav\u00e1ltoz\u00e1s enyh\u00edt\u00e9s\u00e9hez. Az \u00fcvegh\u00e1zhat\u00e1s\u00fa g\u00e1zok kibocs\u00e1t\u00e1s\u00e1nak cs\u00f6kkent\u00e9se, a hidr\u00e1t stabilit\u00e1s\u00e1nak figyelemmel k\u00eds\u00e9r\u00e9se, valamint a met\u00e1n megk\u00f6t\u00e9s\u00e9re \u00e9s t\u00e1rol\u00e1s\u00e1ra szolg\u00e1l\u00f3 technol\u00f3gi\u00e1k fejleszt\u00e9se seg\u00edthet minimaliz\u00e1lni ennek az \u00faj fenyeget\u00e9snek a lehets\u00e9ges hat\u00e1sait.<\/p>\n\n<h2 class=\"wp-block-heading\">Tov\u00e1bbi szempontok<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>A gr\u00f6nlandi j\u00e9g \u00e9s az \u00e9szaki-sarki tengeri j\u00e9g olvad\u00e1sa szint\u00e9n hozz\u00e1j\u00e1rul a glob\u00e1lis felmeleged\u00e9shez, \u00e9s potenci\u00e1lisan destabiliz\u00e1lhatja a met\u00e1n-hidr\u00e1tokat.<\/li>\n<li>A Golf-\u00e1ramlat szerepet j\u00e1tszik az \u00f3ce\u00e1nok h\u0151m\u00e9rs\u00e9klet\u00e9nek \u00e9s a hidr\u00e1t stabilit\u00e1s\u00e1nak szab\u00e1lyoz\u00e1s\u00e1ban, \u00e9s a Golf-\u00e1ramlat helyzet\u00e9ben vagy er\u0151ss\u00e9g\u00e9ben bek\u00f6vetkez\u0151 hossz\u00fa t\u00e1v\u00fa v\u00e1ltoz\u00e1sok befoly\u00e1solhatj\u00e1k a met\u00e1n-kibocs\u00e1t\u00e1st.<\/li>\n<li>A nemzetk\u00f6zi egy\u00fcttm\u0171k\u00f6d\u00e9s \u00e9s kooper\u00e1ci\u00f3 elengedhetetlen a met\u00e1n-hidr\u00e1tok olvad\u00e1s\u00e1b\u00f3l ered\u0151 kih\u00edv\u00e1sok kezel\u00e9s\u00e9hez \u00e9s a kl\u00edmav\u00e1ltoz\u00e1sra gyakorolt lehets\u00e9ges hat\u00e1saik m\u00e9rs\u00e9kl\u00e9s\u00e9hez.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A met\u00e1n-hidr\u00e1tok: A kl\u00edmav\u00e1ltoz\u00e1s lehets\u00e9ges vesz\u00e9lyforr\u00e1sai Mik azok a met\u00e1n-hidr\u00e1tok? A met\u00e1n-hidr\u00e1tok a met\u00e1n g\u00e1zt tartalmaz\u00f3, v\u00edzmolekul\u00e1k ketrec\u00e9be z\u00e1rt, befagyott lerak\u00f3d\u00e1sok. A vil\u00e1g partvid\u00e9kein hatalmas mennyis\u00e9gben megtal\u00e1lhat\u00f3ak, t\u00f6bbek k\u00f6z\u00f6tt az&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[284],"tags":[34,569,15295,15296,291],"class_list":["post-11297","post","type-post","status-publish","format-standard","hentry","category-climate-science","tag-climate-change","tag-global-warming","tag-methane-hydrates","tag-ocean-science","tag-greenhouse-gases"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/11297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=11297"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/11297\/revisions"}],"predecessor-version":[{"id":11298,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/11297\/revisions\/11298"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=11297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=11297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=11297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}