{"id":3320,"date":"2019-05-03T13:37:34","date_gmt":"2019-05-03T11:37:34","guid":{"rendered":"https:\/\/master.k8s.p4.greenpeace.org\/czech\/?p=3320"},"modified":"2021-12-01T13:32:31","modified_gmt":"2021-12-01T12:32:31","slug":"sucho-nezastavimem-pokud-neskoncime-s-palenim-fosilnich-paliv","status":"publish","type":"post","link":"https:\/\/www.greenpeace.org\/czech\/clanek\/3320\/sucho-nezastavimem-pokud-neskoncime-s-palenim-fosilnich-paliv\/","title":{"rendered":"Sucho nezastav\u00edmem, pokud neskon\u010d\u00edme s p\u00e1len\u00edm fosiln\u00edch paliv"},"content":{"rendered":"

Sucho a hospoda\u0159en\u00ed s vodou je v\u00fdrazn\u00fdm t\u00e9matem, kter\u00e9 ka\u017ed\u00fd, kdo vyraz\u00ed do p\u0159\u00edrody, nebo \u017eije na vesnici, c\u00edti doslova na vlastn\u00ed k\u016f\u017ei. Ji\u017e v dubnu jsou vyschl\u00e9 potoky a prakticky st\u00e1le blankytn\u00e1 obloha opravdu neodpov\u00eddaj\u00ed p\u0159edstav\u011b lidov\u00e9ho r\u010den\u00ed \u201capr\u00edlov\u00e9 po\u010das\u00ed\u201d.<\/strong> <\/span><\/p>\n

K suchu se vyj\u00e1d\u0159il i docent Jan Pokorn\u00fd v \u010dl\u00e1nku s chytlav\u00fdm titulkem \u201c<\/span>V\u011bt\u0161ina star\u00fdch civilizac\u00ed vyschla, varuje biolog Pokorn\u00fd. M\u011bli bychom se pod\u00edvat na d\u016fvody\u201d. S panem docentem se shodneme, \u017ee na\u0161e hospoda\u0159en\u00ed s krajinou rozhodn\u011b nen\u00ed na jedni\u010dku. Pan docent ve sv\u00e9m \u010dl\u00e1nku ale zapom\u00edn\u00e1 na kl\u00ed\u010dov\u00fd prvek, kter\u00fd se na sou\u010dasn\u00e9m suchu pod\u00edl\u00ed. P\u0159\u00ed\u010dinou sucha nen\u00ed jen na\u0161e lajd\u00e1ck\u00e1 p\u00e9\u010de o krajinu, d\u016fle\u017eit\u00fdm faktorem je i klimatick\u00e1 zm\u011bna. Dovol\u00edm si proto n\u011bkter\u00e1 \u00a0tvrzen\u00ed pana docenta doplnit o dal\u0161\u00ed souvislosti. <\/span><\/p>\n

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Sucho (ilustra\u010dn\u00ed foto)<\/p><\/div>\n

Energie Slunce je kl\u00ed\u010dov\u00fdm faktorem pro udr\u017een\u00ed \u017eivota na zemi. \u201cEnergie o s\u00edle tis\u00edc watt\u016f na metr \u010dtvere\u010dn\u00ed p\u0159i jasn\u00e9 obloze od jara do podzimu opravdu sv\u00edt\u00ed\u201d, ale je t\u0159eba zm\u00ednit je\u0161t\u011b sklen\u00edkov\u00fd efekt. Sklen\u00edkov\u00e9 plyny se pod\u00edlej\u00ed na zachyt\u00e1v\u00e1n\u00ed tepla v atmosf\u00e9\u0159e a bez nich by na\u0161e planeta m\u011bla zhruba o 30\u00b0 C ni\u017e\u0161\u00ed pr\u016fm\u011brnou teplotu. A byla by pravd\u011bpodobn\u011b bez \u017eivota. Na rozd\u00edl od Slunce, kter\u00e9 je co do v\u00fdkonu velmi stabiln\u00ed, jsou to pr\u00e1v\u011b sklen\u00edkov\u00e9 plyny, kter\u00e9 pro\u0161ly za posledn\u00edch n\u011bkolik desetilet\u00ed obrovskou zm\u011bnou. Koncentraci CO2 – z dlouhodob\u00e9ho hlediska kl\u00ed\u010dov\u00e9ho sklen\u00edkov\u00e9ho plynu – jsme spalov\u00e1n\u00edm fosiln\u00edch paliv dok\u00e1zali zv\u00fd\u0161it od za\u010d\u00e1tku pr\u016fmyslov\u00e9 revoluce o 40 %. Sklen\u00edkov\u00e9 plyny zadr\u017euj\u00ed slune\u010dn\u00ed energii a t\u00edm zvy\u0161uj\u00ed teplotu atmosf\u00e9ry a p\u0159id\u00e1vaj\u00ed n\u011bkolik m\u00e1lo watt\u016f na m2. Co\u017e v dlouhodob\u00e9m horizontu vychyluje klimatick\u00fd syst\u00e9m z rovnov\u00e1hy. \u00a0<\/span><\/p>\n

Vztah mezi zvy\u0161uj\u00edc\u00ed se koncentrac\u00ed CO2 a oteplov\u00e1n\u00edm atmosf\u00e9ry je prok\u00e1zan\u00fdm faktem. Prvn\u00ed zm\u00ednka poch\u00e1z\u00ed dokonce z \u00fasvitu samotn\u00e9ho p\u00e1len\u00ed fosiln\u00edch paliv z roku 1859. Vliv CO2 na atmosf\u00e9ru dokazuj\u00ed i nejr\u016fzn\u011bj\u0161\u00ed m\u011b\u0159en\u00ed jak zde na Zemi, tak i z ob\u011b\u017en\u00e9 dr\u00e1hy. Nap\u0159\u00edklad energie vyza\u0159ov\u00e1na samotnou Zem\u00ed v posledn\u00edch desetilet\u00ed klesla – energie byla zachycena pr\u00e1v\u011b sklen\u00edkov\u00fdmi plyny. A dal\u0161\u00edch d\u016fkaz\u016f je nep\u0159ebern\u00e9 mno\u017estv\u00ed. <\/span><\/p>\n

I predikce budoucnosti jsou relativn\u011b jasn\u00e9. Pokud budeme spalovat d\u00e1le fosiln\u00ed paliva, m\u016f\u017eeme do konce stolet\u00ed zvednout glob\u00e1ln\u00ed teplotu o 3 – 6\u00b0 C. Pro\u010d <\/span>je tam takov\u00e9 rozmez\u00ed? U stoupaj\u00edc\u00ed koncentrace CO2 (a dal\u0161\u00edch sklen\u00edkov\u00fdch plyn\u016f) mus\u00edme br\u00e1t v potaz velmi komplexn\u00ed syst\u00e9m, ve kter\u00e9m n\u011bkter\u00e9 zp\u011btn\u00e9 vazby – a\u0165 u\u017e pozitivn\u00ed nebo negativn\u00ed – prost\u011b nedok\u00e1\u017eeme p\u0159esn\u011b predikovat. A proto jsou modely v\u00fdvoje klimatu ud\u00e1v\u00e1ny v rozmez\u00edch, nikoli v p\u0159esn\u00fdch \u010d\u00edslech. Dne\u0161n\u00ed stav ov\u0161em velmi p\u0159esn\u011b p\u0159edpov\u011bd\u011bly ji\u017e modely, kter\u00e9 m\u00e1me k dispozici od 70. let. <\/span><\/p>\n

Za\u010d\u00edt pracovat na zdrav\u011bj\u0161\u00ed krajin\u011b, kter\u00e1 je schopna zachycovat p\u0159irozen\u011b v\u00edce vody je pro n\u00e1s d\u016fle\u017eit\u00e9 adapta\u010dn\u00ed opat\u0159en\u00ed. Kl\u00ed\u010dov\u00e1 je ale prevence klimatick\u00e9 zm\u011bny. A preventivn\u00ed opat\u0159en\u00ed je jen jedno – p\u0159estat zvy\u0161ovat koncentraci CO2 v atmosf\u00e9\u0159e, tedy p\u0159edev\u0161\u00edm p\u00e1lit fosiln\u00ed paliva. <\/span><\/p>\n

Klimatick\u00e1 zm\u011bna je sou\u010d\u00e1st\u00ed na\u0161ich \u017eivot\u016f a bude sou\u010d\u00e1st\u00ed \u017eivot\u016f hlavn\u011b na\u0161ich d\u011bt\u00ed. M\u016f\u017eeme dok\u00e1zat zabr\u00e1nit jej\u00edm nejhor\u0161\u00edm dopad\u016fm. Mus\u00edme ale za\u010d\u00edt jednat, uv\u011bdomit si komplexnost cel\u00e9ho probl\u00e9mu a za\u010d\u00edt na zm\u011bn\u011b pracovat. A to i obnovou na\u0161\u00ed krajiny. <\/span><\/p>\n

Ps\u00e1no pro Lidov\u00e9 noviny.<\/em><\/p>\n

Odkaz na p\u016fvodn\u00ed \u010dl\u00e1nek pana docenta Pokorn\u00e9ho.\u00a0<\/a><\/p>\n

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Sucho a hospoda\u0159en\u00ed s vodou je v\u00fdrazn\u00fdm t\u00e9matem, kter\u00e9 ka\u017ed\u00fd, kdo vyraz\u00ed do p\u0159\u00edrody, nebo \u017eije na vesnici, c\u00edti doslova na vlastn\u00ed k\u016f\u017ei. Ji\u017e v dubnu jsou vyschl\u00e9 potoky a…<\/p>\n","protected":false},"author":31,"featured_media":3322,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"p4_og_title":"","p4_og_description":"","p4_og_image":"","p4_og_image_id":"","p4_seo_canonical_url":"","p4_campaign_name":"","p4_local_project":"","p4_basket_name":"","p4_department":"","footnotes":""},"categories":[2],"tags":[20],"p4-page-type":[16],"class_list":["post-3320","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-priroda","tag-zmena-klimatu","p4-page-type-clanek"],"_links":{"self":[{"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/posts\/3320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/comments?post=3320"}],"version-history":[{"count":4,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/posts\/3320\/revisions"}],"predecessor-version":[{"id":15714,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/posts\/3320\/revisions\/15714"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/media\/3322"}],"wp:attachment":[{"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/media?parent=3320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/categories?post=3320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/tags?post=3320"},{"taxonomy":"p4-page-type","embeddable":true,"href":"https:\/\/www.greenpeace.org\/czech\/wp-json\/wp\/v2\/p4-page-type?post=3320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}