Zat\u00edmco glob\u00e1ln\u00ed teploty neust\u00e1le rostou, tempo n\u00e1r\u016fstu se v posledn\u00edch letech zpomalilo. V\u011bdci navrhli, \u017ee sope\u010dn\u00e9 erupce, zejm\u00e9na ty mal\u00e9, mohly sehr\u00e1t roli v t\u00e9to \u201epauze glob\u00e1ln\u00edho oteplov\u00e1n\u00ed\u201c.<\/p>\n\n
Sope\u010dn\u00e9 erupce emituj\u00ed oxid si\u0159i\u010dit\u00fd, kter\u00fd se v horn\u00ed atmosf\u00e9\u0159e spojuje s kysl\u00edkem a vytv\u00e1\u0159\u00ed kapi\u010dky kyseliny s\u00edrov\u00e9. Tyto kapi\u010dky mohou z\u016fstat ve vzduchu cel\u00e9 m\u011bs\u00edce, odr\u00e1\u017eet slune\u010dn\u00ed sv\u011btlo od Zem\u011b a sni\u017eovat teploty.<\/p>\n\n
P\u0159edchoz\u00ed v\u00fdzkumy nazna\u010dovaly, \u017ee k ochlazov\u00e1n\u00ed atmosf\u00e9ry v\u00fdrazn\u011b p\u0159isp\u00edvaj\u00ed pouze velk\u00e9 sope\u010dn\u00e9 erupce. Ned\u00e1vn\u00e1 studie veden\u00e1 v\u011bdci z Massachusettsk\u00e9ho technologick\u00e9ho institutu v\u0161ak zjistila, \u017ee mal\u00e9 erupce mohou m\u00edt v\u011bt\u0161\u00ed dopad, ne\u017e se p\u016fvodn\u011b myslelo.<\/p>\n\n
V\u011bdci k m\u011b\u0159en\u00ed mno\u017estv\u00ed sope\u010dn\u00e9ho popela v atmosf\u00e9\u0159e pou\u017eili dru\u017eice, bal\u00f3ny a pozemn\u00ed p\u0159\u00edstroje. Zjistili, \u017ee i mal\u00e9 erupce mohou uvolnit zna\u010dn\u00e9 mno\u017estv\u00ed popela, kter\u00fd m\u016f\u017ee Zemi chr\u00e1nit p\u0159ed slune\u010dn\u00edm sv\u011btlem a zpomalit n\u00e1r\u016fst glob\u00e1ln\u00edch teplot.<\/p>\n\n
Studie odhadla, \u017ee mal\u00e9 sope\u010dn\u00e9 erupce by mohly b\u00fdt zodpov\u011bdn\u00e9 za zpomalen\u00ed n\u00e1r\u016fstu glob\u00e1ln\u00ed teploty a\u017e o 0,2 stupn\u011b Fahrenheita. P\u0159esto\u017ee je to m\u00e9n\u011b ne\u017e ochlazuj\u00edc\u00ed \u00fa\u010dinek v\u011bt\u0161\u00edch erupc\u00ed, je to st\u00e1le v\u00fdznamn\u00e9 ve srovn\u00e1n\u00ed s celkovou rychlost\u00ed glob\u00e1ln\u00edho oteplov\u00e1n\u00ed.<\/p>\n\n
Ochlazuj\u00edc\u00ed \u00fa\u010dinek sope\u010dn\u00fdch erupc\u00ed z\u00e1vis\u00ed na slo\u017een\u00ed popela. Popel, kter\u00fd je bohat\u00fd na reflexn\u00ed miner\u00e1ly, jako jsou \u010d\u00e1stice s\u00edranu a k\u0159emi\u010ditanu, je \u00fa\u010dinn\u011bj\u0161\u00ed p\u0159i odr\u00e1\u017een\u00ed slune\u010dn\u00edho sv\u011btla.<\/p>\n\n
V\u00fdsledky studie nazna\u010duj\u00ed, \u017ee mal\u00e9 sope\u010dn\u00e9 erupce mohly sehr\u00e1t roli v ned\u00e1vn\u00e9m zpomalen\u00ed glob\u00e1ln\u00edho oteplov\u00e1n\u00ed. Je v\u0161ak d\u016fle\u017eit\u00e9 poznamenat, \u017ee sope\u010dn\u00e1 \u010dinnost je velmi prom\u011bnliv\u00e1 a je obt\u00ed\u017en\u00e9 p\u0159edv\u00eddat dlouhodob\u00fd dopad mal\u00fdch erupc\u00ed na zm\u011bnu klimatu.<\/p>\n\n
V\u011bdci nad\u00e1le monitoruj\u00ed sope\u010dnou \u010dinnost po cel\u00e9m sv\u011bt\u011b, aby l\u00e9pe porozum\u011bli jej\u00edmu dopadu na klima. Studiem slo\u017een\u00ed a distribuce sope\u010dn\u00e9ho popela mohou v\u011bdci z\u00edskat poznatky o potenci\u00e1ln\u00edch ochlazuj\u00edc\u00edch \u00fa\u010dinc\u00edch sope\u010dn\u00fdch erupc\u00ed.<\/p>\n\n
P\u0159esto\u017ee sope\u010dn\u00e9 erupce mohly p\u0159isp\u011bt k ned\u00e1vn\u00e9mu zpomalen\u00ed glob\u00e1ln\u00edho oteplov\u00e1n\u00ed, je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee i dal\u0161\u00ed faktory, jako jsou zm\u011bny v sol\u00e1rn\u00ed aktivit\u011b a absorpce tepla oce\u00e1ny, hraj\u00ed roli v klimatick\u00e9 variabilit\u011b. Pochopen\u00ed slo\u017eit\u00fdch interakc\u00ed mezi t\u011bmito faktory je kl\u00ed\u010dov\u00e9 pro v\u00fdvoj \u00fa\u010dinn\u00fdch strategi\u00ed zm\u00edr\u0148ov\u00e1n\u00ed zm\u011bny klimatu.<\/p>","protected":false},"excerpt":{"rendered":"
Mal\u00e9 sopky mohly pomoci zpomalit glob\u00e1ln\u00ed oteplov\u00e1n\u00ed Sope\u010dn\u00e9 erupce a zm\u011bna klimatu Zat\u00edmco glob\u00e1ln\u00ed teploty neust\u00e1le rostou, tempo n\u00e1r\u016fstu se v posledn\u00edch letech zpomalilo. V\u011bdci navrhli, \u017ee sope\u010dn\u00e9 erupce, zejm\u00e9na…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[573],"tags":[569,570,568,571,572],"class_list":["post-206","post","type-post","status-publish","format-standard","hentry","category-earth-and-climate-science","tag-global-warming","tag-climate-science","tag-volcanoes","tag-atmospheric-science","tag-earth-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=206"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/206\/revisions"}],"predecessor-version":[{"id":207,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/206\/revisions\/207"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}