{"id":84800,"date":"2026-05-31T10:11:14","date_gmt":"2026-05-31T10:11:14","guid":{"rendered":"https:\/\/www.europesays.com\/sk\/84800\/"},"modified":"2026-05-31T10:11:14","modified_gmt":"2026-05-31T10:11:14","slug":"kolko-ludi-este-dokaze-zem-uzivit-podla-vedcov-ludstvo-prekrocilo-hranicu-udrzatelnosti-a-skutocny-limit-je-desivo-nizky-vosveteit-sk","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/sk\/84800\/","title":{"rendered":"Ko\u013eko \u013eud\u00ed e\u0161te dok\u00e1\u017ee Zem u\u017eivi\u0165? Pod\u013ea vedcov \u013eudstvo prekro\u010dilo hranicu udr\u017eate\u013enosti a skuto\u010dn\u00fd limit je desivo n\u00edzky | Vosveteit.sk"},"content":{"rendered":"

Nov\u00e1 vedeck\u00e1 \u0161t\u00fadia otv\u00e1ra nepr\u00edjemn\u00fa ot\u00e1zku, ktor\u00fa si \u013eudstvo dlho odkladalo bokom, ko\u013eko \u013eud\u00ed e\u0161te dok\u00e1\u017ee Zem re\u00e1lne u\u017eivi\u0165 bez toho, aby za\u010dala str\u00e1ca\u0165 stabilitu? V\u00fdskum publikovan\u00fd v \u010dasopise Environmental Research Letters tvrd\u00ed, \u017ee hranicu udr\u017eate\u013enosti u\u017e \u013eudstvo prekro\u010dilo.<\/p>\n

Vedci z Flinders University<\/a> analyzovali viac ne\u017e 200 rokov \u00fadajov o glob\u00e1lnej popul\u00e1cii a sledovali, ako sa menil rast \u013eud\u00ed, spotreba zdrojov a tlak na kl\u00edmu. V\u00fdsledok uk\u00e1zal zlom, ktor\u00fd nastal pribli\u017ene v polovici 20. storo\u010dia. Do tohto obdobia platilo, \u017ee viac \u013eud\u00ed znamenalo aj r\u00fdchlej\u0161\u00ed rast ekonomiky a technol\u00f3gi\u00ed. Potom sa trend zmenil.<\/p>\n

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Odoberaj Vosveteit.sk cez Telegram a prihl\u00e1s sa k odberu spr\u00e1v
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Popul\u00e1cia s\u00edce \u010falej r\u00e1stla, ale r\u00fdchlos\u0165 rastu za\u010dala klesa\u0165. Vedci tento stav ozna\u010duj\u00fa ako \u201enegat\u00edvnu demografick\u00fa f\u00e1zu\u201c. To znamen\u00e1, \u017ee syst\u00e9m sa u\u017e nezr\u00fdch\u013euje, ale za\u010d\u00edna nar\u00e1\u017ea\u0165 na limity prostredia.<\/p>\n

\u201eZem nedok\u00e1\u017ee dr\u017ea\u0165 krok so sp\u00f4sobom, ak\u00fdm vyu\u017e\u00edvame zdroje. Nedok\u00e1\u017ee podpori\u0165 ani dne\u0161n\u00fd dopyt bez z\u00e1sadn\u00fdch zmien,\u201c vyjadril sa ved\u00faci autor \u0161t\u00fadie, profesor Corey Bradshaw: \u201ePlan\u00e9ta nedok\u00e1\u017ee udr\u017ea\u0165 ani s\u00fa\u010dasn\u00fa spotrebu bez ve\u013ek\u00fdch zmien\u201c.<\/p>\n

Negat\u00edvna f\u00e1za rastu v\u00fdrazne ovplyvnila emisie a podnebie plan\u00e9ty<\/p>\n

V\u00fdskum uk\u00e1zal aj \u010fal\u0161iu zauj\u00edmav\u00fa vec. Po\u010das tejto \u201enegat\u00edvnej f\u00e1zy\u201c za\u010dala glob\u00e1lna popul\u00e1cia silno s\u00favisie\u0165 s rastom emisi\u00ed, teploty a ekologickej stopy. Znamen\u00e1 to, \u017ee \u010d\u00edm viac \u013eud\u00ed prib\u00fadalo, t\u00fdm v\u00e4\u010d\u0161\u00ed tlak vznikol na kl\u00edmu<\/a> a pr\u00edrodn\u00e9 syst\u00e9my.<\/p>\n

\"rok\"rokZdroj: Unsplash (Jon Tyson)<\/a><\/p>\n

Vedci pritom nepracovali len s po\u010dtom obyvate\u013eov. Sk\u00famali aj spotrebu energie, vyu\u017eitie p\u00f4dy a celkov\u00fd dopad \u013eudskej \u010dinnosti na biosf\u00e9ru. V\u00fdsledky uk\u00e1zali, \u017ee samotn\u00fd po\u010det \u013eud\u00ed vysvet\u013euje ve\u013ek\u00fa \u010das\u0165 n\u00e1rastu environment\u00e1lnych probl\u00e9mov, nie len individu\u00e1lna spotreba.<\/p>\n

Neprehliadni
\n <\/p>\n

\"Samsung\"Samsung <\/p>\n

\n\t\t\t\t\tTieto nov\u00e9 funkcie v Samsung telef\u00f3noch ti pom\u00f4\u017eu ochr\u00e1ni\u0165 s\u00fakromie. Cudz\u00ed \u010dlovek ved\u013ea teba u\u017e len tak neuvid\u00ed, \u010do rob\u00ed\u0161 na mobile <\/p>\n

<\/a><\/p>\n

Pod\u013ea modelov by sa glob\u00e1lna popul\u00e1cia mohla stabilizova\u0165 medzi pribli\u017ene 11,7 a 12,4 miliardami \u013eud\u00ed v priebehu druhej polovice tohto storo\u010dia. To v\u0161ak neznamen\u00e1, \u017ee tak\u00e1to \u00farove\u0148 predstavuje bezpe\u010dn\u00fd stav. Bradshaw upozor\u0148uje, \u017ee tento \u201estrop\u201c vznikol len v\u010faka intenz\u00edvnemu vyu\u017e\u00edvaniu fos\u00edlnych pal\u00edv a vy\u010derp\u00e1vaniu pr\u00edrodn\u00fdch zdrojov. Bez nich by syst\u00e9m fungoval \u00faplne inak.<\/p>\n

Skuto\u010dn\u00e1 hranica udr\u017eate\u013enej popul\u00e1cie je desivo n\u00edzka<\/p>\n

E\u0161te tvrd\u0161\u00ed je odhad tzv. udr\u017eate\u013enej popul\u00e1cie. V\u00fdskumn\u00edci ju stanovili pribli\u017ene na 2,5 miliardy \u013eud\u00ed, ak by v\u0161etci \u017eili v r\u00e1mci ekologick\u00fdch limitov a pri s\u00fa\u010dasnom \u0161tandarde d\u00f4stojn\u00e9ho \u017eivota.<\/p>\n

\u201eTrvalo udr\u017eate\u013en\u00e1 popul\u00e1cia je omnoho ni\u017e\u0161ia a pribli\u017ene zodpoved\u00e1 svetu v polovici 20. storo\u010dia,\u201c uviedol Bradshaw.<\/p>\n

Rozdiel medzi s\u00fa\u010dasn\u00fdmi 8,3 miliardami \u013eud\u00ed a t\u00fdmto odhadom vedci ozna\u010duj\u00fa ako \u201eekologick\u00fd deficit\u201c. Ten sa zatia\u013e dar\u00ed zakr\u00fdva\u0165 hlavne v\u010faka technol\u00f3gi\u00e1m, ktor\u00e9 zvy\u0161uj\u00fa produkciu potrav\u00edn a energie, ale z\u00e1rove\u0148 zvy\u0161uj\u00fa aj tlak na kl\u00edmu.<\/p>\n

\u0160t\u00fadia tie\u017e ukazuje, \u017ee po\u010das posledn\u00fdch desa\u0165ro\u010d\u00ed sa zosilnil vz\u0165ah medzi po\u010dtom \u013eud\u00ed a glob\u00e1lnym otep\u013eovan\u00edm. Nie je to len ot\u00e1zka spotreby na osobu, ale aj celkov\u00e9ho mno\u017estva \u013eud\u00ed na plan\u00e9te<\/a>. Kombin\u00e1cia t\u00fdchto dvoch faktorov vytv\u00e1ra rast\u00faci tlak na ekosyst\u00e9my.<\/p>\n

Vedci upozor\u0148uj\u00fa, \u017ee tento stav neznamen\u00e1 okam\u017eit\u00fd kolaps. Sk\u00f4r ide o postupn\u00e9 zvy\u0161ovanie nestability, ktor\u00e9 sa m\u00f4\u017ee prejavi\u0165 v r\u00f4znych oblastiach, od potravinovej bezpe\u010dnosti cez dostupnos\u0165 vody a\u017e po ekonomick\u00e9 rozdiely medzi regi\u00f3nmi.<\/p>\n

\u201eSyst\u00e9my podpory \u017eivota na Zemi s\u00fa u\u017e pod tlakom,\u201c dod\u00e1va Bradshaw.<\/p>\n

\"Pre\u010do\"Pre\u010doZdroj: DALL-E
\nBud\u00face gener\u00e1cie bud\u00fa ma\u0165 na stole jednu z naj\u0165a\u017e\u0161\u00edch ot\u00e1zok<\/p>\n

Autori \u0161t\u00fadie zd\u00f4raz\u0148uj\u00fa, \u017ee rie\u0161enie neexistuje v jednom kroku. Ide o kombin\u00e1ciu faktorov, od spotreby energie a\u017e po demografick\u00fd v\u00fdvoj. Samotn\u00fd po\u010det \u013eud\u00ed<\/a> v\u0161ak pod\u013ea nich zost\u00e1va k\u013e\u00fa\u010dovou premennou, ktor\u00fa nemo\u017eno ignorova\u0165. Autori zd\u00f4raz\u0148uj\u00fa, \u017ee v\u00fdskum nesmeruje k predpovedi n\u00e1hleho zlomu. Sk\u00f4r opisuje trend, ktor\u00fd sa u\u017e deje a bude pokra\u010dova\u0165 pod\u013ea toho, ako sa spolo\u010dnos\u0165 rozhodne reagova\u0165.<\/p>\n

Bradshaw spolu s \u010fal\u0161\u00edmi autormi tvrd\u00ed, \u017ee bud\u00face gener\u00e1cie bud\u00fa musie\u0165 rie\u0161i\u0165 ot\u00e1zku rovnov\u00e1hy medzi \u017eivotnou \u00farov\u0148ou a ekologick\u00fdmi limitmi plan\u00e9ty.<\/p>\n

\u201eNasleduj\u00face desa\u0165ro\u010dia rozhodn\u00fa o stabilite pr\u00edrody aj spolo\u010dnosti,\u201c uzatvoril.<\/p>\n

\u010ci sa \u013eudstvo prisp\u00f4sob\u00ed r\u00fdchlej\u0161ie, ne\u017e sa preh\u013abi tlak na syst\u00e9my Zeme, zatia\u013e ost\u00e1va otvoren\u00e9. V\u00fdskum v\u0161ak jasne ukazuje, \u017ee diskusia o hraniciach rastu u\u017e nepatr\u00ed len do te\u00f3rie, ale priamo do reality, v ktorej \u017eijeme.<\/p>\n


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