{"id":939,"date":"2004-12-03T10:20:00","date_gmt":"2004-12-03T09:20:00","guid":{"rendered":"https:\/\/kids.esa.int\/losing_the_ozone_layer\/"},"modified":"2026-10-08T00:34:00","modified_gmt":"2026-10-07T22:34:00","slug":"losing_the_ozone_layer","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/losing_the_ozone_layer\/","title":{"rendered":"Nedbrytningen av ozonlaget"},"content":{"rendered":"
\n

Har du noen gang f\u00e5tt solbrenthet? Denne brenningen i huden skyldes ultrafiolett (UV) lys fra solen. Alvorlig solbrenthet er ikke bare smertefullt, men kan ogs\u00e5 f\u00f8re til hudkreft.<\/p>\n<\/div>\n

Heldigvis blir nesten all skadelig UV-str\u00e5ling absorbert av et lag med ozongass 20\u201350 km over jorden. Ozon er imidlertid en form for oksygen som lett kan \u00f8delegges av visse menneskeskapte kjemikalier.<\/p>\n

I 1987 ble de ledende industrilandene enige om \u00e5 fase ut disse kjemikaliene. Likevel har satellittm\u00e5linger vist at uttynningen av ozonlaget har fortsatt over Antarktis. Ozonhullet n\u00e5dde en rekordst\u00f8rrelse i 2000, da det dekket nesten 30 millioner kvadratkilometer, omtrent like stort som det nordamerikanske kontinentet. I 2006 forsvant en enda st\u00f8rre mengde ozon fra atmosf\u00e6ren, selv om hullet var litt mindre.<\/p>\n

Det har ogs\u00e5 oppst\u00e5tt mindre ozonhull over Arktis. Disse hullene f\u00f8rer til at mer UV-str\u00e5ling n\u00e5r tettbefolkede omr\u00e5der i Europa.<\/p>\n

\"Ozone
Prognose for ozonhullet fra i dag til 9. september<\/figcaption><\/figure>\n

ESA-satellitter som MetOp og Envisat spiller en sentral rolle i forskningen p\u00e5 ozonhullet. De gj\u00f8r det mulig for forskere \u00e5 overv\u00e5ke hullets st\u00f8rrelse og f\u00e5 mer kunnskap om hva som f\u00e5r det til \u00e5 vokse eller krympe.<\/p>\n

Europas f\u00f8rste v\u00e6rsatellitt i pol\u00e6r bane, MetOp-A, er utstyrt med et avansert instrument for overv\u00e5king av ozon. Envisat har tre instrumenter som kan unders\u00f8ke ozon og de forurensende stoffene som bryter ned ozonet i den \u00f8vre atmosf\u00e6ren.<\/p>","protected":false},"excerpt":{"rendered":"

Have you ever suffered from sunburn? This burning of the skin is caused by ultraviolet (UV) light from the Sun. Serious burning is not only painful, but it may cause […]<\/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\/2004\/09\/ozone_sky2\/17877959-2-eng-GB\/ozone_sky.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\/2004\/09\/ozone_sky2","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-939","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\/nb\/wp-json\/wp\/v2\/posts\/939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=939"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/939\/revisions"}],"predecessor-version":[{"id":4749,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/939\/revisions\/4749"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=939"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=939"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=939"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=939"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=939"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=939"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=939"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}