{"id":991,"date":"2006-10-03T09:01:00","date_gmt":"2006-10-03T07:01:00","guid":{"rendered":"https:\/\/kids.esa.int\/record_ozone_loss_over_south_pole\/"},"modified":"2026-10-08T00:34:36","modified_gmt":"2026-10-07T22:34:36","slug":"record_ozone_loss_over_south_pole","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/record_ozone_loss_over_south_pole\/","title":{"rendered":"Rekordstort ozon-tab over Sydpolen"},"content":{"rendered":"
\n

Siden 1985 har forskere overv\u00e5get et hul i ozonlaget h\u00f8jt over Antarktis. Man havde h\u00e5bet, at ozonhullet gradvist ville blive mindre, men nye resultater fra ESA\u2019s Envisat-rumfart\u00f8j har afsl\u00f8ret det st\u00f8rste ozon tab, der nogensinde er registreret.<\/p>\n<\/div>\n

M\u00e5linger foretaget den 2. oktober viste et tab p\u00e5 40 millioner ton, hvilket overgik den tidligere rekord fra \u00e5r 2000. Desuden d\u00e6kker dette \u00e5rs ozonhul et areal p\u00e5 28 millioner kvadratkilometer, hvilket er n\u00e6sten lige s\u00e5 stort som hullet fra 2000. Ozonhullets dybde kan ogs\u00e5 m\u00e5le sig med tidligere rekordv\u00e6rdier.<\/p>\n

\u201cEt s\u00e5 markant ozon tab kr\u00e6ver meget lave temperaturer i stratosf\u00e6ren kombineret med sollys,\u201d sagde ESA-forskeren Claus Zehner. \u201c\u00c5rets ekstreme ozon tab kan forklares med, at temperaturerne over Antarktis n\u00e5ede ned p\u00e5 omkring minus 92 grader Celsius \u2013 det laveste, der er m\u00e5lt i omr\u00e5det siden 1979.\u201d<\/p>\n

\"Ozone
Ozonudtyndingen over Sydpolen<\/figcaption><\/figure>\n

Ozon er en form for iltgas. Det danner et lag 25\u201340 km over Jorden i et omr\u00e5de, der kaldes stratosf\u00e6ren. Ozonlaget er vigtigt, fordi det blokerer for skadelige ultraviolette str\u00e5ler fra Solen. Disse str\u00e5ler \u00f8ger risikoen for hudkr\u00e6ft og gr\u00e5 st\u00e6r og p\u00e5virker livet i havet.<\/p>\n

Ozonlagets udtynding skyldes menneskeskabte forurenende stoffer, s\u00e5som klor, som forbliver i atmosf\u00e6ren i mange \u00e5r. N\u00e5r det polare for\u00e5r indtr\u00e6ffer, frigiver sollyset det klor, der er fanget i skyerne i de \u00f8vre luftlag. Kloret nedbryder derefter hurtigt ozonet.<\/p>\n

Hullet varer normalt indtil november eller december, hvor den ozonfattige luft over Antarktis begynder at blande sig med ozonrig luft udefra.<\/p>","protected":false},"excerpt":{"rendered":"

Since 1985, scientists have been monitoring a hole in the ozone layer, high above Antarctica. It had been hoped that the ozone hole will gradually shrink, but new results from […]<\/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\/2006\/10\/2006_ozone_hole2\/18249140-2-eng-GB\/2006_ozone_hole.gif","esa_banner_description":"2006 ozone hole","esa_banner_credit":"KNMI\/TEMIS","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/10\/2006_ozone_hole2","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":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-991","post","type-post","status-publish","format-standard","hentry","category-climate-change","category-earth","category-learn"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=991"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/991\/revisions"}],"predecessor-version":[{"id":4782,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/991\/revisions\/4782"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=991"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=991"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=991"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=991"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=991"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=991"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=991"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}