{"id":1002,"date":"2004-12-03T10:26:00","date_gmt":"2004-12-03T09:26:00","guid":{"rendered":"https:\/\/kids.esa.int\/global_warming\/"},"modified":"2026-10-08T00:34:44","modified_gmt":"2026-10-07T22:34:44","slug":"global_warming","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/global_warming\/","title":{"rendered":"Ilmaston l\u00e4mpeneminen"},"content":{"rendered":"
\n

Joka kerta, kun hengit\u00e4mme ulos, p\u00e4\u00e4st\u00e4mme hiilidioksidikaasua ilmakeh\u00e4\u00e4n. Hiilidioksidi on yksi esimerkki kasvihuonekaasusta \u2013 kaasusta, joka sitoo l\u00e4mp\u00f6\u00e4.<\/p>\n<\/div>\n

Viimeisen 100 vuoden aikana hiilidioksidin m\u00e4\u00e4r\u00e4 ilmakeh\u00e4ss\u00e4 on kasvanut tasaisesti. Suurin osa t\u00e4st\u00e4 kasvusta johtuu ihmisen toiminnasta, kuten \u00f6ljyn ja kivihiilen polttamisesta tai metsien raivaamisesta.<\/p>\n

Mets\u00e4t sitovat ilmakeh\u00e4st\u00e4 suuria m\u00e4\u00e4ri\u00e4 hiilidioksidia. T\u00e4m\u00e4 varastoitunut hiili vapautuu kuitenkin ilmakeh\u00e4\u00e4n, kun puita kaadetaan tai poltetaan.<\/p>\n

Satelliittitietojen perusteella maailma n\u00e4ytt\u00e4\u00e4 l\u00e4mpenev\u00e4n. Suurin osa tutkijoista katsoo, ett\u00e4 ilmaston l\u00e4mpenemisen ja kasvihuonekaasupitoisuuksien nousun v\u00e4lill\u00e4 on yhteys. T\u00e4t\u00e4 ilmi\u00f6t\u00e4 kutsutaan yleisesti \u201ckasvihuoneilmi\u00f6ksi\u201d.<\/p>\n

ESA:n Envisatin kaltaiset satelliitit auttavat meit\u00e4 ymm\u00e4rt\u00e4m\u00e4\u00e4n paremmin maailmanlaajuista ilmastonmuutosta ja ennustamaan, mit\u00e4 tulevaisuudessa tapahtuu.<\/p>\n

\"Global
SCIAMACHY-laitteen mittaama metaanin jakautuminen ilmakeh\u00e4ss\u00e4 maailmanlaajuisesti<\/figcaption><\/figure>\n

Jotkut Envisat-satelliitin mittauslaitteet tuottavat p\u00e4ivitt\u00e4in maailmanlaajuisia karttoja kasvihuonekaasuista, kuten metaanista (kaasua, jota k\u00e4ytet\u00e4\u00e4n yleisesti liesiss\u00e4 ja l\u00e4mmitysj\u00e4rjestelmiss\u00e4). Toiset mittauslaitteet kuvaavat l\u00e4mp\u00f6tilan, lumen, j\u00e4\u00e4n, j\u00e4rvien ja mets\u00e4peitteen muutoksia.<\/p>\n

T\u00e4llaiset tiedot ovat ratkaisevan t\u00e4rkeit\u00e4 kansainv\u00e4listen sopimusten t\u00e4yt\u00e4nt\u00f6\u00f6npanossa, joiden tavoitteena on v\u00e4hent\u00e4\u00e4 kasvihuonekaasup\u00e4\u00e4st\u00f6j\u00e4.<\/p>","protected":false},"excerpt":{"rendered":"

Every time we breathe out, we send carbon dioxide gas into the atmosphere. Carbon dioxide is one example of a greenhouse gas \u2013 a gas that traps heat. Over the […]<\/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\/2002\/02\/air_pollution_real2\/17863862-3-eng-GB\/Air_pollution_real.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\/2002\/02\/Air_pollution_real2","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-1002","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\/fi\/wp-json\/wp\/v2\/posts\/1002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=1002"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1002\/revisions"}],"predecessor-version":[{"id":4788,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/1002\/revisions\/4788"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=1002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=1002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=1002"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=1002"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=1002"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=1002"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=1002"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=1002"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=1002"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=1002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}