{"id":25644,"date":"2021-07-16T02:20:00","date_gmt":"2021-07-16T00:20:00","guid":{"rendered":"https:\/\/www.miljomagasinet.se\/?p=25644"},"modified":"2021-07-14T16:21:11","modified_gmt":"2021-07-14T14:21:11","slug":"sveriges-sydligaste-glaciar-hotad","status":"publish","type":"post","link":"https:\/\/www.miljomagasinet.se\/index.php\/2021\/07\/16\/sveriges-sydligaste-glaciar-hotad\/","title":{"rendered":"Sveriges sydligaste glaci\u00e4r hotad"},"content":{"rendered":"\n

Sveriges sydligaste glaci\u00e4r, Helags i J\u00e4mtlands l\u00e4n, har krympt med 40 procent under de senaste 100 \u00e5ren. Nu befarar glaci\u00e4rforskaren och professorn Gunhild Rosenqvist att glaci\u00e4ren kan vara helt borta redan 2050.<\/p>\n\n\n\n

\"\"
Helagsglaci\u00e4ren fotograferad 2009. 2050 kan den ha f\u00f6rsvunnit helt.
\n(Foto: ZHubert Bartkowiak<\/a> \/ CC BY-SA<\/a>)<\/i><\/figcaption><\/figure><\/div>\n\n\n\n

Enligt den senaste tidens rapporter fr\u00e5n USA och Kanadas v\u00e4stkust har v\u00e4rmerekord avl\u00f6st varandra och br\u00e4nder har f\u00f6rst\u00f6rt hela st\u00e4der. Enligt en rapport kan upp till 500 personer ha avlidit i f\u00f6ljderna av hettan, som \u00e4ven har haft konsekvenser f\u00f6r djurliv och milj\u00f6. Den 9 juli fick v\u00e4rlden ett nytt globalt v\u00e4rmerekord med 54,4 grader Celsius i amerikanska Death Valley. De fem varmaste \u00e5ren globalt har infallit de senaste sex \u00e5ren. Juni m\u00e5nad var den varmaste junim\u00e5nad som uppm\u00e4tts i Sverige.<\/p>\n\n\n\n

\u201dKlimatkrisen \u00e4r h\u00e4r\u201d. <\/strong>Det var budskapet i det utkast till FN:s
nya klimatrapport som l\u00e4ckte f\u00f6r n\u00e5gra veckor sedan. Redan i dag medf\u00f6r extremv\u00e4dret konsekvenser \u2013 en tredjedel av v\u00e4rmerelaterade d\u00f6dsfall kan h\u00e4rledas till m\u00e4nsklig p\u00e5verkan p\u00e5 klimatet enligt en studie i Nature Climate Change \u2013 och minskade sk\u00f6rdar. Jorden har v\u00e4rmts med 1,1 grader Celsius j\u00e4mf\u00f6rt med f\u00f6rindustriella niv\u00e5er, och om utvecklingen forts\u00e4tter kan det bli upp emot tre grader varmare innan \u00e5rhundradet \u00e4r slut.<\/p>\n\n\n\n

Effekterna av uppv\u00e4rmningen kan ses p\u00e5 v\u00e4rldens glaci\u00e4rer. Enligt en fransk studie, publicerad i Nature, har v\u00e4rldens glaci\u00e4rer f\u00f6rlorat 270 miljarder ton is varje \u00e5r sedan \u00e5r 2000. Om sm\u00e4ltvattnet f\u00f6rdelas j\u00e4mnt \u00f6ver en yta lika stor som Irland skulle det bilda en tre meter h\u00f6g vattenpelare. En femtedel av havsyteh\u00f6jningen hittills kan h\u00e4rledas till sm\u00e4ltvatten fr\u00e5n glaci\u00e4rer.<\/p>\n\n\n\n

N\u00e4stan tv\u00e5 miljarder m\u00e4nniskor \u00e4r beroende av detta sm\u00e4ltvatten f\u00f6r sin dricksvattenf\u00f6rs\u00f6rjning, s\u00e4rskilt i Himalayaregionen. Tidigare i \u00e5r miste 140 personer livet i en by i norra Indien n\u00e4r vattenmassorna fr\u00e5n en kollapsad glaci\u00e4r rasade ned \u00f6ver dem. \u00c4ven i Sverige p\u00e5g\u00e5r en avsm\u00e4ltning av landets sydligaste glaci\u00e4rer. Tidigare har det talats om att Helags och Sylglaci\u00e4ren i J\u00e4mtland minskat med 30 procent p\u00e5 hundra \u00e5r. Men ny f\u00f6rskning visar att minskningen \u00e4r s\u00e5 mycket som 40 procent.<\/p>\n\n\n\n

\u2013 Det spelar ingen roll i dag om det kommer v\u00e4ldigt mycket sn\u00f6. Det sm\u00e4lter bort \u00e4nd\u00e5 om sommaren \u00e4r varm och vi har ju haft v\u00e4ldigt mycket varma somrar p\u00e5 sistone, s\u00e5 det ser ganska m\u00f6rkt ut framledes ocks\u00e5, s\u00e4ger Gunhild Rosqvist, professor i naturgeografi och glaci\u00e4rforskning, till SVT Nyheter.<\/p>\n\n\n\n

Hon menar att glaci\u00e4ren kommer att vara helt borta redan \u00e5r 2050.<\/p>\n\n\n\n

Nu p\u00e5g\u00e5r ett forskningsprojekt<\/strong> som ska bromsa avsm\u00e4ltningen. En del av glaci\u00e4ren ska t\u00e4ckas med en stor vit duk som ska reflektera solens heta str\u00e5lar och skydda den retirerande ismassan.<\/p>\n\n\n\n

\u2013 Det vi g\u00f6r \u00e4r ett test som, om det ger bra resultat, f\u00f6rhoppningsvis kan bli ett st\u00f6rre forskningsprojekt. Vi f\u00f6r dialog med Tarfala forskningsstation, s\u00e4ger glaciologen Erik Huss.<\/p>\n\n\n\n

Det tv\u00e4rvetenskapliga projektet \u00e4r ocks\u00e5 en symbolhandling f\u00f6r klimatet, och man har anstr\u00e4ngt sig att g\u00f6ra det s\u00e5 klimatneutralt som m\u00f6jligt. Duken \u00e4r gjord av \u00f6verbliven ull och majsst\u00e4rkelse. Den transporteras till glaci\u00e4ren genom att f\u00f6rst dras p\u00e5 kajakvagnar \u00f6ver fj\u00e4llet f\u00f6r att sedan b\u00e4ras upp den sista biten. De projektansvariga tog sig dit med elbil.<\/p>\n\n\n\n

Duken ska ligga kvar \u00f6ver sommaren och sedan ska resultatet utv\u00e4rderas i sin helhet.<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"

Sveriges sydligaste glaci\u00e4r, Helags i J\u00e4mtlands l\u00e4n, har krympt med 40 procent under de senaste 100 \u00e5ren. Nu befarar glaci\u00e4rforskaren<\/p>\n","protected":false},"author":12,"featured_media":25645,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pgc_meta":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[36,5,17,15,4],"tags":[],"yoast_head":"\nSveriges sydligaste glaci\u00e4r hotad - MILJ\u00d6MAGASINET<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.miljomagasinet.se\/index.php\/2021\/07\/16\/sveriges-sydligaste-glaciar-hotad\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sveriges sydligaste glaci\u00e4r hotad - MILJ\u00d6MAGASINET\" \/>\n<meta property=\"og:description\" content=\"Sveriges sydligaste glaci\u00e4r, Helags i J\u00e4mtlands l\u00e4n, har krympt med 40 procent under de senaste 100 \u00e5ren. 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Nu befarar glaci\u00e4rforskaren","_links":{"self":[{"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/posts\/25644"}],"collection":[{"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/comments?post=25644"}],"version-history":[{"count":0,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/posts\/25644\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/media\/25645"}],"wp:attachment":[{"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/media?parent=25644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/categories?post=25644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.miljomagasinet.se\/index.php\/wp-json\/wp\/v2\/tags?post=25644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}