{"id":5135,"date":"2025-09-26T06:51:09","date_gmt":"2025-09-26T06:51:09","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/5135\/"},"modified":"2025-09-26T06:51:09","modified_gmt":"2025-09-26T06:51:09","slug":"kliima-soojenemine-voib-esile-kutsuda-jaaaja-keskkond","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/5135\/","title":{"rendered":"Kliima soojenemine v\u00f5ib esile kutsuda j\u00e4\u00e4aja | Keskkond"},"content":{"rendered":"

Kliimakonsensuses kahtlejaile meeldib osutada t\u00f5igale, et veel m\u00f5ned k\u00fcmned aastad tagasi pidasid m\u00f5nedki teadlased suureks ohuks pigem uue j\u00e4\u00e4aja tulekut.<\/p>\n

N\u00fc\u00fcd ilmneb v\u00e4rskest uuringust, et ka kliima soojenemise tagaj\u00e4rjel v\u00f5ib tulla Maale uus j\u00e4\u00e4aeg, t\u00f5si k\u00fcll, p\u00e4ris kauges tulevikus.<\/p>\n

Kaks Ameerika teadlast, Andy Ridgwell ja Dominik H\u00fclse, m\u00f5lemad Riverside’i California \u00dclikoolist, kirjutavad ajakirjas Science<\/a> m\u00f5nest v\u00f5imalikust asjaolust, mis paistavad kliimateadusel seni olevat kahe silma vahele j\u00e4\u00e4nud.<\/p>\n

Maakera kliima suudab end pikemas plaanis laias laastus tasakaalus hoida, ja \u00fcheks kindlaks, kuigi \u00fcliaeglaselt toimivaks tasakaaluhoiu mehhanismiks peetakse juba ammugi kivimite murenemist.<\/p>\n

Kui vihma sajab, v\u00f5tavad vihmapiisad \u00f5hust ikka natuke ka s\u00fcsihappegaasi kaasa. Muu hulgas sattub seda CO2 ka maapinnal paljandunud silikaatsetele mineraalidele, n\u00e4iteks neile, mis sisalduvad graniidis.<\/p>\n

Rahvatarkus \u00fctleb, et ka veetilgad v\u00f5ivad kivisse ajapikku augu uuristada, ja t\u00f5si ta on, et ka vihmapiisad v\u00f5ivad kivimeid aegam\u00f6\u00f6da lahustada. Kui see juhtub, siis voolavad koos vihmaveega merre ka vees lahustunud s\u00fcsihappegaas ja kividest p\u00e4rit kaltsium.<\/p>\n

<\/p>\n

Meres j\u00f5uab neist moodustunud kaltsiumkarbonaat mereloomade lubikodadesse ja merep\u00f5hjas moodustuvasse lubjakivisse.<\/p>\n

Nii kaob s\u00fcsinikku sadadeks miljoniteks aastateks ringlusest ja kliimal on v\u00f5imalus selleks ajaks j\u00e4lle jaheneda.<\/p>\n

Kuid, ja n\u00fc\u00fcd tuleb m\u00e4ngu Ridgwelli ja H\u00fclse argument, kui kliima parajasti veel soojeneb, siis on kivimite murenemine kiirem.<\/p>\n

Aga siis on ju kiirem ka s\u00fcsihappegaasi k\u00e4ibelt k\u00f5rvaldamine. Ja see omakorda t\u00e4hendab, et ka kliima jahtumine v\u00f5ib olla kiirem ja suurem kui seni eeldatud.<\/p>\n

Selline m\u00f5ttek\u00e4ik aitab h\u00e4sti seletada ka Maa ajaloos ette tulnud \u00fclik\u00fclmi j\u00e4\u00e4aegu, mil arvatakse, et m\u00f5nikord oli peaaegu kogu planeet j\u00e4\u00e4 ja lume all.<\/p>\n

Teine samatoimeline mehhanism h\u00f5lmab Ridgwelli ja H\u00fclse j\u00e4rgi taimset planktonit ehk v\u00e4ikesi vetikaid, kelleni j\u00f5uab soojema kliima korral rohkem toitaineid, mis hoogustavad fotos\u00fcnteesi.<\/p>\n

Kui vetikad surevad ja merep\u00f5hja langevad, viivad nad sinna ka s\u00fcsinikku kuumemas kliimas rohkem kui k\u00fclmemas.<\/p>\n

Autorid v\u00e4idavad, et nende mehhanismide toimel v\u00f5ib kliima, kui ta kord jahenema hakkab, kergesti tasakaalupunkti \u00fcletada ja j\u00e4\u00e4ajani j\u00f5uda.<\/p>\n

Uut lumepall-maakera ajastut siiski oodata ei ole, sest selle jaoks on t\u00e4nap\u00e4eva atmosf\u00e4\u00e4ris liiga palju hapnikku.<\/p>\n

Teadusuudised on Vikerraadios eetris esmasp\u00e4evast reedeni ca kell 8.35 ja laup\u00e4eval ca kell 8.25.<\/p>\n","protected":false},"excerpt":{"rendered":"Kliimakonsensuses kahtlejaile meeldib osutada t\u00f5igale, et veel m\u00f5ned k\u00fcmned aastad tagasi pidasid m\u00f5nedki teadlased suureks ohuks pigem uue…\n","protected":false},"author":2,"featured_media":5136,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[26,27,37,33,35,34,36,31,32,4333,21,4328,4331,4326,4332,4330,28,29,4329,95,4327,19,25,4325,23,24,22,20,4324,30,92,93,94],"class_list":{"0":"post-5135","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maailm","8":"tag-breaking-news","9":"tag-breakingnews","10":"tag-ee","11":"tag-eesti","12":"tag-eesti-keel","13":"tag-estonia","14":"tag-estonian","15":"tag-featured-news","16":"tag-featurednews","17":"tag-graniit","18":"tag-headlines","19":"tag-jaaaeg","20":"tag-kivimid","21":"tag-kliima","22":"tag-kliima-jahenemine","23":"tag-kliima-soojenemine","24":"tag-latest-news","25":"tag-latestnews","26":"tag-lumepall-maa","27":"tag-maailm","28":"tag-meri","29":"tag-news","30":"tag-populaarseimad-lood","31":"tag-susihappegaas","32":"tag-top-stories","33":"tag-topstories","34":"tag-uldised-uudised","35":"tag-uudised","36":"tag-vihm","37":"tag-viimased-uudised","38":"tag-world","39":"tag-world-news","40":"tag-worldnews"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/5135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=5135"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/5135\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/5136"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=5135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=5135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=5135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}