{"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\/sv\/record_ozone_loss_over_south_pole\/","title":{"rendered":"Rekordstor ozonf\u00f6rlust \u00f6ver Sydpolen"},"content":{"rendered":"
\n

Sedan 1985 har forskare \u00f6vervakat ett h\u00e5l i ozonskiktet h\u00f6gt ovanf\u00f6r Antarktis. Man hade hoppats att ozonh\u00e5let gradvis skulle krympa, men nya resultat fr\u00e5n ESA:s rymdsond Envisat visar att ozonf\u00f6rlusten \u00e4r den st\u00f6rsta som n\u00e5gonsin uppm\u00e4tts.<\/p>\n<\/div>\n

M\u00e4tningar som gjordes den 2 oktober visade en minskning p\u00e5 40 miljoner ton, vilket \u00f6vertr\u00e4ffade det tidigare rekordet fr\u00e5n \u00e5r 2000. Dessutom t\u00e4cker \u00e5rets ozonh\u00e5l en yta p\u00e5 28 miljoner kvadratkilometer, vilket \u00e4r n\u00e4stan lika stort som h\u00e5let \u00e5r 2000. \u00c4ven ozonh\u00e5lets djup t\u00e4vlar med tidigare rekordv\u00e4rden.<\/p>\n

\u201cEn s\u00e5 betydande ozonf\u00f6rlust kr\u00e4ver mycket l\u00e5ga temperaturer i stratosf\u00e4ren i kombination med solljus\u201d, s\u00e4ger ESA-forskaren Claus Zehner. \u201c\u00c5rets extrema ozonf\u00f6rlust kan f\u00f6rklaras av att temperaturerna \u00f6ver Antarktis n\u00e5dde cirka minus 92 Celsius \u2013 den l\u00e4gsta temperaturen som uppm\u00e4tts i omr\u00e5det sedan 1979.\u201d<\/p>\n

\"Ozone
Ozonf\u00f6rlusten \u00f6ver Sydpolen<\/figcaption><\/figure>\n

Ozon \u00e4r en form av syregas. Det bildar ett skikt 25\u201340 km ovanf\u00f6r jorden i ett omr\u00e5de som kallas stratosf\u00e4ren. Ozonskiktet \u00e4r viktigt eftersom det blockerar skadliga ultravioletta str\u00e5lar fr\u00e5n solen. Dessa str\u00e5lar \u00f6kar risken f\u00f6r hudcancer och gr\u00e5 starr och p\u00e5verkar det marina livet.<\/p>\n

Ozonlagrets uttunning orsakas av f\u00f6roreningar som m\u00e4nniskan sl\u00e4pper ut, till exempel klor, som stannar kvar i atmosf\u00e4ren i m\u00e5nga \u00e5r. N\u00e4r v\u00e5ren kommer till polerna frig\u00f6r solljuset det klor som fastnat i molnen p\u00e5 h\u00f6g h\u00f6jd. Kloret bryter d\u00e5 snabbt ned ozonet.<\/p>\n

H\u00e5let kvarst\u00e5r vanligtvis fram till november eller december, d\u00e5 den ozonfattiga luften ovanf\u00f6r Antarktis b\u00f6rjar blandas med ozonrik luft fr\u00e5n omgivningen.<\/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\/sv\/wp-json\/wp\/v2\/posts\/991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=991"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/991\/revisions"}],"predecessor-version":[{"id":4782,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/991\/revisions\/4782"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=991"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=991"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=991"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=991"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=991"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=991"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=991"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}