{"id":21893,"date":"2020-07-17T20:18:00","date_gmt":"2020-07-17T17:18:00","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=21893"},"modified":"2020-07-17T18:23:42","modified_gmt":"2020-07-17T15:23:42","slug":"hatalmas-merteku-a-globalis-metankibocsatas","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=21893&lang=hu","title":{"rendered":"Hatalmas m\u00e9rt\u00e9k\u0171 a glob\u00e1lis met\u00e1nkibocs\u00e1t\u00e1s"},"content":{"rendered":"\n

A Stanford Egyetem tanulm\u00e1nya szerint a glob\u00e1lis met\u00e1nkibocs\u00e1t\u00e1s minden id\u0151k legmagasabb szintj\u00e9t \u00e9rte el.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Az Earth System Science Data \u00e9s az Environmental Research Letters c\u00edm\u0171 tudom\u00e1nyos foly\u00f3iratokban k\u00f6zz\u00e9tett tanulm\u00e1ny szerint a met\u00e1nkibocs\u00e1t\u00e1s rekordszintj\u00e9t els\u0151sorban a sz\u00e9nb\u00e1ny\u00e1szatb\u00f3l, a k\u0151olaj- \u00e9s f\u00f6ldg\u00e1zkitermel\u00e9sb\u0151l, a szarvasmarha- \u00e9s juhteny\u00e9szt\u00e9sb\u0151l, a szem\u00e9tlerak\u00f3kb\u00f3l ered\u0151 n\u00f6veked\u00e9s id\u00e9zte el\u0151.<\/p>\n\n\n\n

2000 \u00e9s 2017 k\u00f6z\u00f6tt olyan p\u00e1ly\u00e1ra ker\u00fclt ennek az \u00fcvegh\u00e1zhat\u00e1s\u00fa g\u00e1znak a kibocs\u00e1t\u00e1sa, amely a kl\u00edmamodellek szerint a sz\u00e1zad v\u00e9ge el\u0151tt 3-4 Celsius-fokos felmeleged\u00e9shez fog vezetni \u2013 \u00edrt\u00e1k a kutat\u00f3k.<\/p>\n\n\n\n

2017-ben \u2013 ez az utols\u00f3 esztend\u0151, amelyb\u0151l adat van a teljes glob\u00e1lis met\u00e1nkibocs\u00e1t\u00e1sr\u00f3l \u2013 a F\u00f6ld l\u00e9gk\u00f6re mintegy 600 milli\u00f3 tonn\u00e1t nyelt el ebb\u0151l a sz\u00edntelen, szagtalan g\u00e1zb\u00f3l, amelynek az \u00fcvegh\u00e1zhat\u00e1sa a sz\u00e9n-dioxidn\u00e1l 28-szor er\u0151sebb sz\u00e1z\u00e9ves id\u0151tartamot tekintve.<\/p>\n\n\n\n

A met\u00e1nkibocs\u00e1t\u00e1s t\u00f6bb mint fele emberi tev\u00e9kenys\u00e9gb\u0151l sz\u00e1rmazik. Az \u00e9ves met\u00e1nkibocs\u00e1t\u00e1s 9 sz\u00e1zal\u00e9kkal \u2013 \u00e9vi 50 milli\u00f3 tonn\u00e1val \u2013 n\u0151tt a 2000-es \u00e9vek eleje \u00f3ta, amikor a met\u00e1nkoncentr\u00e1ci\u00f3 a l\u00e9gk\u00f6rben viszonylag stabil volt – mutatt\u00e1k ki a kutat\u00f3k.<\/p>\n\n\n\n

Glob\u00e1lisan a fosszilis \u00fczemanyagok \u00e9s a tehenek a forr\u00e1sai a met\u00e1nkibocs\u00e1t\u00e1s n\u00f6veked\u00e9s\u00e9nek. \u201eA marh\u00e1k \u00e9s m\u00e1s k\u00e9r\u0151dz\u0151k kibocs\u00e1t\u00e1sa csaknem olyan nagy, mint a fosszilis \u00fczemanyagipar\u00e9\u201d \u2013 mondta Rob Jackson, a Stanford F\u00f6ld-, Energia- \u00e9s K\u00f6rnyezettudom\u00e1nyi Iskol\u00e1j\u00e1nak professzora.<\/p>\n\n\n\n

A koronav\u00edrus-j\u00e1rv\u00e1ny idej\u00e9n a sz\u00e9n-dioxid-kibocs\u00e1t\u00e1s visszaesett az ipar \u00e9s a k\u00f6zleked\u00e9s le\u00e1ll\u00e1sa miatt.<\/p>\n\n\n\n

\u201eNincs es\u00e9ly arra, hogy a met\u00e1nkibocs\u00e1t\u00e1s ugyanolyan m\u00e9rt\u00e9kben cs\u00f6kkenjen, mint a sz\u00e9n-dioxid-kibocs\u00e1t\u00e1s a koronav\u00edrus miatt. H\u00e1zainkat, \u00e9p\u00fcleteinket f\u0171tj\u00fck, a mez\u0151gazdas\u00e1g pedig egyre n\u00f6vekszik\u201d \u2013 tette hozz\u00e1 a professzor.<\/p>\n\n\n\n

(MTI\/origo.hu<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"

A Stanford Egyetem tanulm\u00e1nya szerint a glob\u00e1lis met\u00e1nkibocs\u00e1t\u00e1s minden id\u0151k legmagasabb szintj\u00e9t \u00e9rte el.<\/p>\n","protected":false},"author":5,"featured_media":21894,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,49,592,598,39],"tags":[2462,105],"class_list":["post-21893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-hirek","category-tarsadalom","category-tudomany","category-vilag","tag-kornyezetszennyezes","tag-tanulmany"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/21893","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=21893"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/21893\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/21894"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}