{"id":401,"date":"2018-04-10T07:24:00","date_gmt":"2018-04-10T05:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/esa_satellites_help_combat_plastic_pollution\/"},"modified":"2026-10-08T00:27:45","modified_gmt":"2026-10-07T22:27:45","slug":"esa_satellites_help_combat_plastic_pollution","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/esa_satellites_help_combat_plastic_pollution\/","title":{"rendered":"ESA:s satelliter bidrar till kampen mot plastf\u00f6roreningar"},"content":{"rendered":"<div class=\"lede\">\n<p>Med sina vackra bl\u00e5 hav \u00e4r det inte konstigt att jorden kallas f\u00f6r den bl\u00e5 planeten. Vatten \u00e4r livsn\u00f6dv\u00e4ndigt, och d\u00e4rf\u00f6r \u00e4r det viktigt att vi tar v\u00e4l hand om v\u00e5ra hav, floder och sj\u00f6ar.<\/p>\n<\/div>\n<p>F\u00f6r att hj\u00e4lpa till har ESA skickat upp rymdfarkoster som Sentinel-satelliterna i omloppsbana runt jorden. De \u00e4r utformade f\u00f6r att \u00f6vervaka jorden fr\u00e5n rymden och skicka bilder till forskare p\u00e5 marken. Den information de samlar in anv\u00e4nds f\u00f6r att \u00f6vervaka vattenniv\u00e5er, planera f\u00f6r \u00f6versv\u00e4mningar och se till att det finns tillr\u00e4ckligt med vatten f\u00f6r alla att anv\u00e4nda.<\/p>\n<p>Nu blir vi alltmer medvetna om ett stort problem som v\u00e5ra hav st\u00e5r inf\u00f6r: plastf\u00f6roreningar. Cirka 10 miljoner ton plastavfall sl\u00e4ngs ut i jordens hav varje \u00e5r. Det \u00e4r l\u00e4tt att se plastavfall n\u00e4r det spolas upp p\u00e5 str\u00e4nderna, men skr\u00e4p finns \u00e4ven l\u00e5ngt ute till havs. En del har till och med uppt\u00e4ckts i frusen polaris!<\/p>\n<\/p>\n<p>Ta reda p\u00e5 hur ESA:s satelliter bidrar till att f\u00f6rvalta vattenresurserna. Upphovsr\u00e4tt: EO4SD-Water-konsortiet.<\/p>\n<p>Plasten i v\u00e5ra hav bryts gradvis ned av v\u00e5gorna. Den kan sedan av misstag \u00e4ta upp av fiskar och andra havsdjur. F\u00f6rutom att det \u00e4r skadligt f\u00f6r dessa djur hamnar plasten i n\u00e4ringskedjan, vilket inneb\u00e4r att andra levande varelser \u2013 inklusive m\u00e4nniskor \u2013 p\u00e5verkas.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA - ScienceOffice.org\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/04\/Remote_sensing_of_marine_plastic_litter\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2018\/04\/remote_sensing_of_marine_plastic_litter\/17873039-2-eng-GB\/Remote_sensing_of_marine_plastic_litter.jpg\" alt=\"Remote sensing of marine plastic litter\"><figcaption>Fj\u00e4rranalys av plastavfall i havet<\/figcaption><\/figure>\n<p>Satellitkartor \u00f6ver havsstr\u00f6mmar anv\u00e4nds redan f\u00f6r att f\u00f6ruts\u00e4ga var skr\u00e4p kommer att samlas i Stilla havet, Atlanten och Indiska oceanen. Forskarna hoppas kunna ta detta ett steg l\u00e4ngre genom att unders\u00f6ka om satelliter direkt kan uppt\u00e4cka plastf\u00f6roreningar som flyter i jordens hav. ESA:s satelliter skulle f\u00f6rs\u00f6ka g\u00f6ra detta genom att studera det infrar\u00f6da ljus som reflekteras av skr\u00e4pet och leta efter ett speciellt \u201cfingeravtryck\u201d som visar att plast finns n\u00e4rvarande. Denna teknik anv\u00e4nds redan i \u00e5tervinningsanl\u00e4ggningar f\u00f6r att sortera ut olika typer av plast.<\/p>\n<p>Om det h\u00e4r fungerar bra kan vi skapa en exakt karta \u00f6ver jordens hav som visar var plastskr\u00e4pet flyter omkring. N\u00e4r vi v\u00e4l k\u00e4nner till problemets verkliga omfattning kan vi ta fram de b\u00e4sta l\u00f6sningarna f\u00f6r att l\u00f6sa det!<\/p>\n<p>Rolig fakta:<\/p>\n<p>Sentinel-satelliterna har f\u00e5tt sitt namn efter soldater vars uppgift \u00e4r att h\u00e5lla utkik efter faror. ESA:s Sentinel-satelliter h\u00e5ller vakt \u00f6ver v\u00e5r planet.<\/p>","protected":false},"excerpt":{"rendered":"<p>With its beautiful blue oceans, it is no wonder that Earth is known as the Blue Planet. Water is vital for life, so it is important that we take good [&hellip;]<\/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\/2018\/04\/ocean_plastic\/17881364-2-eng-GB\/Ocean_plastic.jpg","esa_banner_description":"Ocean plastic","esa_banner_credit":"J. 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