{"id":113609,"date":"2026-08-20T00:14:34","date_gmt":"2026-08-19T22:14:34","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=113609"},"modified":"2026-08-19T09:34:58","modified_gmt":"2026-08-19T07:34:58","slug":"vedci-publikovali-studii-ktera-tvrdi-ze-svetova-populace-se-musi-snizit-na-polovinu-na-4-miliardy-aby-se-zachranila-planeta","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/08\/20\/vedci-publikovali-studii-ktera-tvrdi-ze-svetova-populace-se-musi-snizit-na-polovinu-na-4-miliardy-aby-se-zachranila-planeta\/","title":{"rendered":"\u201eV\u011bdci\u201c publikovali studii, kter\u00e1 tvrd\u00ed, \u017ee sv\u011btov\u00e1 populace se mus\u00ed sn\u00ed\u017eit na polovinu \u2013 na 4 miliardy \u2013 aby se zachr\u00e1nila planeta"},"content":{"rendered":"
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\u201eMen\u0161\u00ed populace by chr\u00e1nila p\u0159\u00edrodn\u00ed d\u011bdictv\u00ed Zem\u011b, v\u010detn\u011b jej\u00edch divok\u00fdch stanovi\u0161\u0165, divok\u00e9 zv\u011b\u0159e a klimatu. Takov\u00fd sv\u011bt je na dosah.\u201c<\/span><\/h3>\n

Dal\u0161\u00ed den, dal\u0161\u00ed titulek volaj\u00edc\u00ed po masivn\u00edm vylid\u0148ov\u00e1n\u00ed. WinePress ji\u017e l\u00e9ta<\/span><\/strong>\u00a0informuje\u00a0o s\u00e9rii do o\u010d\u00ed bij\u00edc\u00edch a p\u0159\u00edm\u00fdch v\u00fdzev ke sn\u00ed\u017een\u00ed populace v boji proti zm\u011bn\u011b klimatu a k tomu, aby se planeta stala \u201eudr\u017eiteln\u011bj\u0161\u00ed\u201c. (N\u011bkter\u00e9 z t\u011bchto zpr\u00e1v naleznete na konci tohoto p\u0159\u00edsp\u011bvku.)<\/span><\/p>\n

Minul\u00fd t\u00fdden byl v \u010dasopise\u00a0<\/span>Sustainable Development<\/span><\/em>\u00a0publikov\u00e1n dal\u0161\u00ed v\u00fdzkumn\u00fd \u010dl\u00e1nek , kter\u00fd p\u0159it\u00e1hl pozornost online a objevil se v mnoha titulc\u00edch mainstreamov\u00e9ho tisku.<\/span><\/p>\n

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Auto\u0159i studie\u00a0<\/span>\u2013<\/span><\/a>\u00a0\u201eDos\u00e1hnout udr\u017eitelnosti sn\u00ed\u017een\u00edm po\u010dtu obyvatel na 4 miliardy do roku 2200\u201c \u2013 ve sv\u00e9m shrnut\u00ed napsali:<\/span><\/strong><\/p>\n

\u201eMinul\u00e9 stolet\u00ed s masivn\u00edm n\u00e1r\u016fstem lidsk\u00e9 populace a spot\u0159eby zdroj\u016f p\u0159ineslo \u0159adu ne\u017e\u00e1douc\u00edch dopad\u016f na \u017eivotn\u00ed prost\u0159ed\u00ed, od ztr\u00e1ty biodiverzity a\u017e po zm\u011bnu klimatu. Existuje v\u0161ak mezera ve v\u00fdzkumu, proto\u017ee kone\u010dn\u00e9 p\u0159\u00ed\u010diny \u010dasto nejsou p\u0159esn\u011b pops\u00e1ny nebo se o nich v\u016fbec nezmi\u0148uj\u00ed.\u201c<\/span><\/em><\/p>\n

V t\u00e9to studii ukazuj\u00ed ukazatele biodiverzity, spot\u0159eby a zne\u010di\u0161t\u011bn\u00ed extr\u00e9mn\u011b siln\u00e9 korelace ve srovn\u00e1n\u00ed s velikost\u00ed lidsk\u00e9 populace a jej\u00edm dopadem na obyvatele. Popisujeme kauz\u00e1ln\u00ed mechanismy t\u011bchto vztah\u016f. N\u00e1sledn\u011b s vyu\u017eit\u00edm dostupn\u00fdch dat demonstrujeme, \u017ee cestou k udr\u017eitelnosti je zpomalen\u00ed a postupn\u00e9 zvr\u00e1cen\u00ed popula\u010dn\u00edho r\u016fstu na p\u0159ibli\u017en\u011b 4 miliardy nebo m\u00e9n\u011b do roku 2200 a sou\u010dasn\u00e9 sn\u00ed\u017een\u00ed dopadu na obyvatele.<\/span><\/em><\/p>\n

Mezi v\u00fdhody pat\u0159\u00ed obnova stanovi\u0161\u0165 a ochrana voln\u011b \u017eij\u00edc\u00edch \u017eivo\u010dich\u016f, sn\u00ed\u017een\u00ed emis\u00ed sklen\u00edkov\u00fdch plyn\u016f a dal\u0161\u00edch zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek, m\u00e9n\u011b konflikt\u016f o zdroje a sn\u00ed\u017een\u00ed glob\u00e1ln\u00ed chudoby.<\/span><\/em><\/p>\n

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Sv\u011btov\u00e1 populace a index \u017eiv\u00e9 planety 1970\u20132020; po\u010detnost v roce 1970 je indexov\u00e1na jako 1,0. \u00dadaje o populaci poch\u00e1zej\u00ed z UNDESA (2024). Index \u017eiv\u00e9 planety poch\u00e1z\u00ed ze Sv\u011btov\u00e9ho fondu na ochranu p\u0159\u00edrody (2024).<\/span><\/figcaption><\/figure>\n

\u00davod studie to je\u0161t\u011b v\u00edce objas\u0148uje: Auto\u0159i tvrd\u00ed, \u017ee 17 c\u00edl\u016f udr\u017eiteln\u00e9ho rozvoje (SDG) OSN nejde dostate\u010dn\u011b daleko, jeliko\u017e kontrola velikosti populace nen\u00ed v\u00fdslovn\u011b zm\u00edn\u011bna.<\/span><\/p>\n

\u201eA\u010dkoli je nap\u0159\u00edklad \u201aOdpov\u011bdn\u00e1 spot\u0159eba a v\u00fdroba\u2018 12. ze 17 c\u00edl\u016f udr\u017eiteln\u00e9ho rozvoje OSN, \u017e\u00e1dn\u00fd z c\u00edl\u016f udr\u017eiteln\u00e9ho rozvoje ani \u017e\u00e1dn\u00fd z jejich 169 \u201ad\u00edl\u010d\u00edch c\u00edl\u016f\u2018 nezmi\u0148uje velikost populace ani popula\u010dn\u00ed r\u016fst (UNDESA 2025).\u201c<\/span><\/em><\/p>\n

Auto\u0159i pokra\u010duj\u00ed:<\/span><\/strong><\/p>\n

\u201eDosa\u017een\u00ed sc\u00e9n\u00e1\u0159e n\u00edzk\u00e9 plodnosti dle OSN by bylo vhodn\u011bj\u0161\u00ed ne\u017e dodr\u017eov\u00e1n\u00ed sc\u00e9n\u00e1\u0159\u016f st\u0159edn\u00ed nebo vysok\u00e9 plodnosti.\u201c<\/span><\/em><\/p>\n

Je\u0161t\u011b lep\u0161\u00ed by byla glob\u00e1ln\u00ed m\u00edra plodnosti v\u00fdrazn\u011b pod \u00farovn\u00ed reprodukce v d\u0159\u00edv\u011bj\u0161\u00edm \u010dasov\u00e9m bod\u011b, jako ve v\u00fd\u0161e uveden\u00e9m sc\u00e9n\u00e1\u0159i IHME Fastest. Existuj\u00ed dostate\u010dn\u00e9 d\u016fkazy o tom, \u017ee by toho bylo mo\u017en\u00e9 dos\u00e1hnout rychle a bez n\u00e1tlaku \u0159e\u0161en\u00edm neuspokojen\u00fdch pot\u0159eb \u017een a p\u00e1r\u016f v oblasti slu\u017eeb v oblasti reproduk\u010dn\u00edho zdrav\u00ed a zlep\u0161en\u00edm vzd\u011bl\u00e1vac\u00edch p\u0159\u00edle\u017eitost\u00ed d\u00edvek, zejm\u00e9na v chud\u0161\u00edch zem\u00edch (Hardee a kol. 2014).<\/span><\/em><\/p>\n

Auto\u0159i tak\u00e9 pouk\u00e1zali na:<\/span><\/strong><\/p>\n

\u201eKdy\u017e se \u017eeny mohou svobodn\u011b rozhodnout, kolik d\u011bt\u00ed cht\u011bj\u00ed m\u00edt, m\u00edra plodnosti m\u00e1 tendenci klesat na \u00farove\u0148 pot\u0159ebnou k reprodukci nebo i n\u00ed\u017ee, a to \u010dasto velmi rychle (viz metaanal\u00fdza 508 studi\u00ed z cel\u00e9ho sv\u011bta od D’Souzy a kol., 2022).\u201c<\/span><\/em><\/p>\n

P\u00e1ni, pod\u00edvejte, jak skv\u011bl\u00fd je feminismus! (Sarkasmus).<\/span><\/p>\n

Z\u00e1v\u011brem auto\u0159i napsali:<\/span><\/strong><\/p>\n

\u201eOpatrn\u00e9 zastaven\u00ed a zvr\u00e1cen\u00ed popula\u010dn\u00edho r\u016fstu a sn\u00ed\u017een\u00ed jeho dopadu na obyvatele je strategie, kter\u00e1 prosp\u00edv\u00e1 jak p\u0159\u00edrod\u011b, tak lidem. Sn\u00ed\u017e\u00ed tlak na p\u0159\u00edrodn\u00ed zdroje, sn\u00ed\u017e\u00ed chudobu ve vysoce plodn\u00fdch oblastech d\u00edky men\u0161\u00edm rodin\u00e1m, omez\u00ed zne\u010di\u0161t\u011bn\u00ed, zm\u00edrn\u00ed konflikty o zdroje a migraci a zlep\u0161\u00ed kvalitu \u017eivota v hust\u011b os\u00eddlen\u00fdch oblastech.\u201c<\/span><\/em><\/p>\n

Skromn\u011bj\u0161\u00ed populace (nap\u0159\u00edklad opatrn\u00e9 sn\u00ed\u017een\u00ed na 4 miliardy do roku 2200) by ochr\u00e1nila p\u0159\u00edrodn\u00ed d\u011bdictv\u00ed Zem\u011b, v\u010detn\u011b jej\u00edch divok\u00fdch stanovi\u0161\u0165, divok\u00e9 zv\u011b\u0159e a klimatu. Takov\u00fd sv\u011bt je na dosah ruky.<\/span><\/em><\/p>\n

Ver\u0161 8:36:<\/span><\/strong>\u00a0Kdo v\u0161ak h\u0159e\u0161\u00ed proti mn\u011b, \u0161kod\u00ed sv\u00e9 vlastn\u00ed du\u0161i; v\u0161ichni, kdo m\u011b nen\u00e1vid\u00ed, miluj\u00ed smrt.<\/span><\/p>\n

Ironi\u00ed je, \u017ee tito \u201ev\u011bdci\u201c tvrd\u00ed, \u017ee by toho bylo mo\u017en\u00e9 dos\u00e1hnout asi za dv\u011b st\u011b let. Pokud se v\u0161ak pod\u00edv\u00e1te na sm\u011br, kter\u00fdm se v\u011bci v sou\u010dasnosti ub\u00edraj\u00ed, c\u00edle 4 miliard lid\u00ed \u2013 a up\u0159\u00edmn\u011b \u0159e\u010deno, podstatn\u011b m\u00e9n\u011b \u2013 bude dosa\u017eeno mnohem, mnohem d\u0159\u00edve: kv\u016fli kolapsu ekonomik po cel\u00e9m sv\u011bt\u011b, co\u017e povede k masov\u00fdm nepokoj\u016fm, anarchii a panice; dal\u0161\u00edm v\u00e1lk\u00e1m, dal\u0161\u00edm hladomor\u016fm a kanibalismu, dal\u0161\u00edm \u201eplandemick\u00fdm epidemi\u00edm\u201c a tak d\u00e1le.<\/span><\/p>\n<\/div>\n<\/div>\n

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Zdroj<\/span><\/a><\/span><\/h3>\n

 <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u201eMen\u0161\u00ed populace by chr\u00e1nila p\u0159\u00edrodn\u00ed d\u011bdictv\u00ed Zem\u011b, v\u010detn\u011b jej\u00edch divok\u00fdch stanovi\u0161\u0165, divok\u00e9 zv\u011b\u0159e a klimatu….<\/p>\n","protected":false},"author":2,"featured_media":113610,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[794,65,3284,1561],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/113609"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=113609"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/113609\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/113610"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=113609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=113609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=113609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}