{"id":1731,"date":"2017-03-05T09:51:08","date_gmt":"2017-03-05T08:51:08","guid":{"rendered":"https:\/\/finalcall.travel\/da\/?p=23308"},"modified":"2017-03-05T09:51:08","modified_gmt":"2017-03-05T08:51:08","slug":"smaa-aendringer-flyenes-ruter-kan-give-10-mindre-forurening","status":"publish","type":"post","link":"https:\/\/finalcall.demowebprojects.com\/se\/2017\/03\/05\/smaa-aendringer-flyenes-ruter-kan-give-10-mindre-forurening\/","title":{"rendered":"Sm\u00e5 \u00e6ndringer i flyenes ruter kan give 10% mindre forurening"},"content":{"rendered":"<p><strong>Hvis flyselskaberne \u00e6ndrede en smule p\u00e5 mange af deres nuv\u00e6rende ruter, kan det give 10 pct. mindre forurening og belastning af luften oppe i de \u00f8vre dele af atmosf\u00e6ren.<\/strong><br \/>\n\u00c6ndringerne vil m\u00e5ske \u00f8ge flyselskabernes omkostninger med \u00e9n procent, men det burde b\u00e5de selskabernes ledelser og passagererne acceptere, n\u00e5r de milj\u00f8m\u00e6ssige forbedringer er s\u00e5 markant st\u00f8rre.<br \/>\nTallene stammer fra en ny videnskabelig unders\u00f8gelse, som forskere fra University of Reading i England, DLR Institute of Atmospheric Physics i Tyskland, Cicero centret i Oslo og Eurocontrol i Bruxelles har foretaget.<br \/>\nAnalysen afsl\u00f8rer, at der i dag ikke bliver gjort nok fra flyselskaber og luftfart myndigheder side for at identificere, hvor flymotorernes udledninger skader mest \u2013 og \u00e6ndre de internationale flyruter derefter.<br \/>\nLangdistance fly opererer i h\u00f8jder n\u00e6r stratosf\u00e6ren. Deroppe har de en helt anden effekt p\u00e5 de menneskeskabte klima forandringer end, hvis forureningen foregik ved jord overfladen. If\u00f8lge forskerne skader CO2 udledninger i f.eks. 10.000 meters h\u00f8jde dobbelt s\u00e5 meget som tilsvarende forurening nede p\u00e5 jorden.<br \/>\nDertil kommer, at jetfly udleder mange andre typer drivhus gasser end CO2 \u2013 f.eks. kondens striber og ozon. De har tilsammen en stor indflydelse p\u00e5 klimaet i de h\u00f8jere luftlag.<br \/>\nForskerne simulerede 400 forskellige flyvninger p\u00e5 85 ruter p\u00e5 tv\u00e6rs af Atlanten for at finde frem til deres milj\u00f8 belastning.<br \/>\nM\u00e5let var at finde frem til de optimale ruter mellem Nordamerika og Europa, hvor man tog hensyn til b\u00e5de vejrforholdene, tiden p\u00e5 dagen, de sikkerheds m\u00e6ssige aspekter ved flyvningen og de skiftende \u00e5rstider.<br \/>\nKonklusionen er, at milj\u00f8 belastningen kan reduceres med op til 10 pct, hvis flyveruterne blev \u00e6ndret dynamisk efter de aktuelle vejrforhold. Drifts omkostninger ved f.eks. ekstra br\u00e6ndstof forbrug ville h\u00f8jst v\u00e6re 1 pct.<br \/>\n\u00c9n ting er teorien \u2013 en anden praksis.<br \/>\nDet internationale forsker team er ikke bl\u00e5-\u00f8jet: Fly- og rejsebranchen er ikke moden til at foretage klima optimeret rutel\u00e6gning endnu. Men den b\u00f8r tages med i al fremtidig placering af, hvordan passagerfly skal bev\u00e6ge sig p\u00e5 tv\u00e6rs af Atlanterhavet.<br \/>\nForskerne ser ogs\u00e5 \u00f8gede omkostninger for flyselskaber og udfordringer med trafikstyringen i luften som forhindringer, der skal overvindes, f\u00f8r dynamisk rute planl\u00e6gning kan indf\u00f8res.<br \/>\nDesuden er forskerne ikke sikre p\u00e5, at deres nuv\u00e6rende talmateriale er stort nok til at kunne bruges direkte til styringen.<br \/>\nNye it-systemer skal v\u00e6re lynhurtigt reagerende p\u00e5 vejrforandringer og kunne levere vejr prognoser, der virkeligt holder. Ellers kan den nye smarte ruteplanl\u00e6gning, der l\u00f8bende forandrer sig, vise sig at v\u00e6re en st\u00f8rre belastning end en fordel.<br \/>\nHvis problemerne til geng\u00e6ld kan l\u00f8ses, kan forskernes nye id\u00e9 let vise sig at v\u00e6re en relativ enkel og billig m\u00e5de at im\u00f8dekomme milj\u00f8 belastningen fra den konstant voksende flytrafik.<br \/>\nDen nye analyse er netop offentliggjort i det anerkendte fagblad <a href=\"http:\/\/www.reading.ac.uk\/news-and-events\/releases\/PR712903.aspx\" target=\"_blank\" rel=\"noopener\">\u201dEnvironmental Research Letters\u201d<\/a>\u2026.<br \/>\n&nbsp;<br \/>\nDenne artikel er fra vores s\u00f8stermedie, <strong><a href=\"http:\/\/trendsandtravel.dk\/smaa-aendringer-flyruter-har-stor-miljoe-effekt\/\" target=\"_blank\" rel=\"noopener\">Trendsandtravel.dk<\/a><\/strong> &#8211; der skriver om trends, rejser og gadgets.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hvis flyselskaberne \u00e6ndrede en smule p\u00e5 mange af deres nuv\u00e6rende ruter, kan det give 10 pct. mindre forurening og belastning af luften oppe i de \u00f8vre dele af atmosf\u00e6ren. \u00c6ndringerne vil m\u00e5ske \u00f8ge flyselskabernes omkostninger med \u00e9n procent, men det burde b\u00e5de selskabernes ledelser og passagererne acceptere, n\u00e5r de milj\u00f8m\u00e6ssige forbedringer er s\u00e5 markant st\u00f8rre. &hellip;<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1731","post","type-post","status-publish","format-standard","hentry","category-featured"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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