{"id":1000,"date":"2010-02-18T14:04:00","date_gmt":"2010-02-18T13:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_threat_of_melting_ice\/"},"modified":"2026-10-08T00:34:42","modified_gmt":"2026-10-07T22:34:42","slug":"the_threat_of_melting_ice","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/the_threat_of_melting_ice\/","title":{"rendered":"A j\u00e9golvad\u00e1s vesz\u00e9lye"},"content":{"rendered":"
\n

K\u00f6r\u00fclbel\u00fcl 20 000 \u00e9vvel ezel\u0151tt Eur\u00f3pa, \u00c1zsia, \u00c9szak- \u00e9s D\u00e9l-Amerika nagy r\u00e9sz\u00e9t hatalmas, t\u00f6bb kilom\u00e9ter vastags\u00e1g\u00fa j\u00e9gtakar\u00f3k bor\u00edtott\u00e1k. Az\u00f3ta a j\u00e9g fokozatosan elolvadt, \u00e9s a j\u00e9gtakar\u00f3k visszah\u00faz\u00f3dtak. Ma a F\u00f6ld sz\u00e1razf\u00f6ldi ter\u00fcletein m\u00e1r csak az Antarktiszon \u00e9s Gr\u00f6nlandon tal\u00e1lhat\u00f3k j\u00e9gtakar\u00f3k. N\u00e9mi j\u00e9g gleccserek form\u00e1j\u00e1ban a hegyvid\u00e9ki r\u00e9gi\u00f3kban, valamint \u00fasz\u00f3 j\u00e9gt\u00e1bl\u00e1k form\u00e1j\u00e1ban a Jeges-tengeren \u00e9s az Antarktisz k\u00f6rny\u00e9k\u00e9n is el\u0151fordul.<\/p>\n<\/div>\n

Els\u0151 pillant\u00e1sra ezek a legut\u00f3bbi j\u00e9gkorszakb\u00f3l megmaradt, t\u00e1voli maradv\u00e1nyok ma m\u00e1r a legt\u00f6bb\u00fcnk sz\u00e1m\u00e1ra jelent\u00e9ktelennek t\u0171nnek. Az igazs\u00e1gt\u00f3l azonban semmi sem \u00e1llhatna t\u00e1volabb. Sok tud\u00f3s \u00fagy v\u00e9li, hogy bolyg\u00f3nk felmeleged\u00e9se az \u00e1ltalunk a l\u00e9gk\u00f6rbe kibocs\u00e1tott \u00fcvegh\u00e1zhat\u00e1s\u00fa g\u00e1zok k\u00f6vetkezm\u00e9nye. Ha a bolyg\u00f3 melegebb\u00e9 v\u00e1lik, a j\u00e9gtakar\u00f3k elkezdenek olvadni, ami a sz\u00e1zad v\u00e9g\u00e9re ak\u00e1r t\u00f6bb m\u00e9teres tengerszint-emelked\u00e9st is okozhat. Egy ilyen emelked\u00e9s sz\u00e9les k\u00f6r\u0171 \u00e1rad\u00e1sokat eredm\u00e9nyezne az alacsonyan fekv\u0151 partvid\u00e9ki ter\u00fcleteken, \u00e9s sz\u00e1mos nagyv\u00e1ros l\u00e9tez\u00e9s\u00e9t vesz\u00e9lyeztetn\u00e9.<\/p>\n

Az \u0171rb\u0151l sz\u00e1rmaz\u00f3 megfigyel\u00e9sek arra utalnak, hogy a nagy j\u00e9gtakar\u00f3k egyes r\u00e9szei egyre gyorsabban kezdenek el olvadni. Ek\u00f6zben a leg\u00fajabb m\u0171holdas felv\u00e9telek azt is megmutatt\u00e1k, hogy az \u00e9szaki-sarkvid\u00e9ki ny\u00e1r folyam\u00e1n szokatlanul nagy kiterjed\u00e9s\u0171 tengeri j\u00e9gter\u00fcletek olvadtak el. B\u00e1r a tengerszintet nem befoly\u00e1solja a lebeg\u0151 j\u00e9g olvad\u00e1sa, m\u00e1s fontos k\u00f6rnyezeti v\u00e1ltoz\u00e1sok is bek\u00f6vetkeznek majd. P\u00e9ld\u00e1ul a j\u00e9gtakar\u00f3k t\u00fck\u00f6rk\u00e9nt viselkednek: visszat\u00fckr\u00f6zik a napf\u00e9nyt, \u00e9s ezzel h\u0171tik a F\u00f6ldet. Ha a j\u00e9g elt\u0171nik, a F\u00f6ld val\u00f3sz\u00edn\u0171leg melegebb\u00e9 v\u00e1lik, \u00e9s jelent\u0151s \u00e9ghajlati v\u00e1ltoz\u00e1sok k\u00f6vetkezhetnek be. A sarkvid\u00e9ki r\u00e9gi\u00f3kban \u00e9l\u0151 vadon \u00e9l\u0151 \u00e1llatokra is puszt\u00edt\u00f3 hat\u00e1ssal lehet ez.<\/p>","protected":false},"excerpt":{"rendered":"

About 20,000 years ago, much of Europe, Asia, North and South America was covered by huge sheets of ice, each many kilometres thick. Since then, the ice has gradually melted […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2009\/10\/iceberg2\/17899718-2-eng-GB\/Iceberg.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2009\/10\/Iceberg2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[64,42,10],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1000","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=1000"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1000\/revisions"}],"predecessor-version":[{"id":2143,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/1000\/revisions\/2143"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=1000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=1000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=1000"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=1000"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=1000"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=1000"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=1000"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=1000"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=1000"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=1000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}