<\/p>\n
Birle\u015fmi\u015f Milletler raporu, d\u00fcnyan\u0131n buzlu b\u00f6lgelerinin tehlikeli bir erimeyle kar\u015f\u0131 kar\u015f\u0131ya kald\u0131\u011f\u0131n\u0131 ve k\u00fcresel \u0131s\u0131nman\u0131n ka\u00e7\u0131n\u0131lmaz bir a\u015f\u0131m d\u00f6neminin ard\u0131ndan 1 derecenin alt\u0131na d\u00fc\u015f\u00fcr\u00fclmesi gerekti\u011fini tespit etti.
Raporda, kar ve buzun kal\u0131c\u0131 ve yayg\u0131n kayb\u0131n\u0131n, Paris \u0130klim Antla\u015fmas\u0131’n\u0131n 1,5 derece hedefinin 2 veya 3 dereceye a\u015f\u0131lmas\u0131n\u0131n y\u00f6netilebilir veya acil emisyon kesintilerine tercih edilebilir […]<\/p>\n","protected":false},"author":1,"featured_media":49916,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[2],"tags":[],"class_list":["post-49915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dunya"],"yoast_head":"\n
\n\tBirle\u015fmi\u015f Milletler<\/a> raporu, d\u00fcnyan\u0131n buzlu b\u00f6lgelerinin tehlikeli bir erimeyle kar\u015f\u0131 kar\u015f\u0131ya kald\u0131\u011f\u0131n\u0131 ve k\u00fcresel \u0131s\u0131nman\u0131n ka\u00e7\u0131n\u0131lmaz bir a\u015f\u0131m d\u00f6neminin ard\u0131ndan 1 derecenin alt\u0131na d\u00fc\u015f\u00fcr\u00fclmesi gerekti\u011fini tespit etti.<\/p>\n
\n\tRaporda, kar ve buzun kal\u0131c\u0131 ve yayg\u0131n kayb\u0131n\u0131n, Paris \u0130klim Antla\u015fmas\u0131’n\u0131n 1,5 derece hedefinin 2 veya 3 dereceye a\u015f\u0131lmas\u0131n\u0131n y\u00f6netilebilir veya acil emisyon kesintilerine tercih edilebilir oldu\u011fu y\u00f6n\u00fcndeki kal\u0131c\u0131 efsaneyi \u00e7\u00fcr\u00fctt\u00fc\u011f\u00fc belirtildi.<\/p>\n
\n\tGezegenin sanayi \u00f6ncesi d\u00f6nemden bu yana 1,3 derece \u0131s\u0131nd\u0131\u011f\u0131, sera gaz\u0131<\/a> emisyonlar\u0131n\u0131n s\u0131n\u0131rland\u0131r\u0131lamamas\u0131 ve do\u011fan\u0131n korunamamas\u0131n\u0131n, bilim insanlar\u0131n\u0131 y\u00fczy\u0131l sonu \u0131s\u0131nmas\u0131n\u0131 1,5 derecede tutma m\u00fccadelesinde bir miktar a\u015f\u0131m\u0131n ka\u00e7\u0131n\u0131lmaz oldu\u011fu sonucuna g\u00f6t\u00fcrd\u00fc\u011f\u00fc ifade edildi.<\/p>\n
\n\tBilim insanlar\u0131, d\u00fcnyadaki t\u00fcm buz ve kar\u0131 i\u00e7eren kat\u0131 haldeki su<\/a> olan kriyosfer \u00fczerindeki a\u015f\u0131r\u0131 etkilerin, s\u0131cakl\u0131klar\u0131n bu e\u015fi\u011fin \u00fczerinde m\u00fcmk\u00fcn olan en k\u0131sa s\u00fcre kalmas\u0131 gerekti\u011fi anlam\u0131na geldi\u011fi konusunda uyard\u0131. Buna ek olarak, uzun vadeli \u0131s\u0131nmay\u0131 ideal olarak 2150 y\u0131l\u0131na kadar 1 derecenin alt\u0131na d\u00fc\u015f\u00fcrmek i\u00e7in yeterli miktarda gezegeni \u0131s\u0131tan karbonun atmosferden uzakla\u015ft\u0131r\u0131lmas\u0131 gerekti\u011fi vurguland\u0131.<\/p>\n
\n\tMevcut politikalar okyanus dola\u015f\u0131m\u0131n\u0131 bozabilir<\/h2>\n
\n\tRaporda, mevcut politikalar alt\u0131nda beklenen ve yakla\u015f\u0131k 3 derecelik zirve s\u0131cakl\u0131klara ula\u015fan y\u00fcksek a\u015f\u0131m\u0131n, y\u00fczeye yak\u0131n permafrostun neredeyse tamam\u0131n\u0131 eritece\u011fi, okyanus dola\u015f\u0131m\u0131nda ciddi ve muhtemelen ani bozulmalar\u0131 muhtemel k\u0131laca\u011f\u0131 ve yayg\u0131n asitlenmeye yol a\u00e7aca\u011f\u0131 yer ald\u0131. En son bilimsel ara\u015ft\u0131rmalar, deniz buzunun daha \u00f6nce d\u00fc\u015f\u00fcn\u00fclenden daha yava\u015f toparland\u0131\u011f\u0131n\u0131 g\u00f6steriyor.<\/p>\n
\n\tUluslararas\u0131 Kriyosfer \u0130klim Giri\u015fimi ve Birle\u015fmi\u015f Milletler \u00c7evre Program\u0131 taraf\u0131ndan bir araya getirilen 80 bilim insan\u0131n\u0131n haz\u0131rlad\u0131\u011f\u0131 raporda, k\u00fcresel s\u0131cakl\u0131klar 1,5 dereceye d\u00fc\u015f\u00fcr\u00fclse bile buzul erimesinin deniz seviyelerini y\u00fckseltmesi ve su g\u00fcvenli\u011fini tehdit etmesi gibi hasarlar\u0131n b\u00fcy\u00fck k\u0131sm\u0131n\u0131n kal\u0131c\u0131 olaca\u011f\u0131 belirtildi.<\/p>\n
\n\tUluslararas\u0131 Kriyosfer \u0130klim Giri\u015fiminde buzulbilimci ve raporun ba\u015fyazar\u0131 olan James Kirkham, kriyosferin iklim sisteminin en hassas bile\u015fenlerinden biri oldu\u011funu ve kayb\u0131n\u0131n sonu\u00e7lar\u0131n\u0131n t\u00fcm gezegeni etkiledi\u011fini s\u00f6yledi.<\/p>\n
\n\tKirkham, bu y\u0131l Nepal-\u00c7in s\u0131n\u0131r\u0131nda \u015fimdiye kadar kaydedilen en b\u00fcy\u00fck ve en \u00f6l\u00fcmc\u00fcl buz ve kaya \u00e7\u0131\u011flar\u0131ndan birinin g\u00f6r\u00fcld\u00fc\u011f\u00fcn\u00fc, bu tek olay\u0131n binlerce insan\u0131n \u00f6l\u00fcm\u00fcne yol a\u00e7t\u0131\u011f\u0131n\u0131 ve Nepal’in gayrisafi yurt i\u00e7i has\u0131las\u0131n\u0131n y\u00fczde 10’una e\u015fde\u011fer hasar b\u0131rakt\u0131\u011f\u0131n\u0131 ifade etti. \u0130svi\u00e7re’nin son be\u015f y\u0131lda buzul buzunun y\u00fczde 20’sini kaybetti\u011fini ve \u00f6n\u00fcm\u00fczdeki on y\u0131lda d\u00fcnya \u00e7ap\u0131nda binlerce buzulun her y\u0131l yok olmas\u0131n\u0131n beklendi\u011fini s\u00f6zlerine ekledi.<\/p>\n
\n\tBuz \u00f6rt\u00fcleri alt\u0131 kat daha h\u0131zl\u0131 eriyor<\/h2>\n
\n\tD\u00fcnya liderleri ve diplomatlar\u0131n 31. y\u0131ll\u0131k COP iklim konferans\u0131 i\u00e7in T\u00fcrkiye’de bir araya geldi\u011fi d\u00f6neme denk gelen rapor, kriyosfer ve kutup okyanuslar\u0131n\u0131n h\u0131zl\u0131 ve giderek artan erimesini belgeledi. Bu erimenin, deniz seviyesinin y\u00fcz milyonlarca insan\u0131 tehdit edecek \u015fekilde y\u00fckselmesine yol a\u00e7an Gr\u00f6nland<\/a> ve Antarktika<\/a> buz \u00f6rt\u00fclerinin kayb\u0131ndan, gezegeni \u0131s\u0131tan daha fazla gaz salan permafrostun \u00e7\u00f6z\u00fclmesine kadar uzanan hasarlara neden oldu\u011fu ifade edildi.<\/p>\n
\n\tRaporda, tarihsel \u0131s\u0131nmaya hala tepki veren buzullar\u0131n, uzun vadeli \u0131s\u0131nma 0,8 dereceye d\u00fc\u015f\u00fcr\u00fcld\u00fc\u011f\u00fc takdirde y\u00fczlerce y\u0131ll\u0131k bir zaman diliminde mevcut hacimlerinin yaln\u0131zca yakla\u015f\u0131k y\u00fczde 70’ini koruyabilece\u011fi tespit edildi.<\/p>\n
\n\tGr\u00f6nland ve Antarktika’y\u0131 kaplayan ve bug\u00fcn 1990’lara k\u0131yasla yakla\u015f\u0131k alt\u0131 kat daha h\u0131zl\u0131 eriyen buz \u00f6rt\u00fclerinin, a\u015f\u0131m\u0131n k\u0131sa s\u00fcrd\u00fc\u011f\u00fc ve s\u0131cakl\u0131k art\u0131\u015f\u0131n\u0131n 1,5 dereceye d\u00f6nd\u00fc\u011f\u00fc senaryolarda bile buz kaybetmeye devam edece\u011fi belirtildi. Bilim insanlar\u0131, kutup buz \u00f6rt\u00fcleri i\u00e7in g\u00fcvenli ve uzun vadeli bir s\u0131cakl\u0131k s\u0131n\u0131r\u0131n\u0131n k\u00fcresel \u0131s\u0131nman\u0131n 1,0 derece seviyesine \u00e7ok daha yak\u0131n, hatta muhtemelen daha d\u00fc\u015f\u00fck oldu\u011funu s\u00f6yledi.<\/p>\n
\n\tKar ve buzun, \u0131s\u0131nman\u0131n her anl\u0131k art\u0131\u015f\u0131na h\u0131zla tepki verdi\u011fini belirten Kirkham, \u00f6zellikle de\u011fi\u015fimlerin geri d\u00f6nd\u00fcr\u00fclemez hale gelmesine neden olan devrilme noktalar\u0131 a\u015f\u0131ld\u0131\u011f\u0131nda, bu sistemlerin \u00e7o\u011funun a\u015f\u0131m sonras\u0131 toparlanmas\u0131n\u0131n y\u00fczy\u0131llar veya biny\u0131llar alaca\u011f\u0131n\u0131 ifade etti.<\/p>\n
\n\tD\u00fcnyan\u0131n emisyonlar\u0131 acilen azaltmas\u0131 gerekiyor<\/h2>\n
\n\tGe\u00e7en ay yay\u0131mlanan bir Birle\u015fmi\u015f Milletler \u00c7evre Program\u0131 raporu, s\u0131cakl\u0131klar\u0131n sanayi \u00f6ncesi d\u00f6nemin 1,7 derece \u00fczerine \u00e7\u0131kmas\u0131n\u0131 engellemek i\u00e7in d\u00fcnyan\u0131n emisyonlar\u0131 2030 y\u0131l\u0131na kadar y\u00fczde 18, 2035 y\u0131l\u0131na kadar ise y\u00fczde 45 oran\u0131nda azaltmas\u0131 gerekti\u011fini ortaya koydu. Raporda 1,5 derecenin \u00fczerinde kalman\u0131n iyi bir sonucu olmad\u0131\u011f\u0131 yer ald\u0131.<\/p>\n
\n\tKriyosfer raporu, 2,8 derecelik k\u00fcresel \u0131s\u0131nmayla sonu\u00e7lanacak mevcut politikalar\u0131n, Rocky Da\u011flar\u0131, Alpler, \u0130zlanda<\/a> ve \u0130skandinavya’daki buzul k\u00fctlesini y\u00fczde 10’un alt\u0131na d\u00fc\u015f\u00fcrece\u011fini buldu. Is\u0131nma 1,5 derece ile s\u0131n\u0131rland\u0131r\u0131l\u0131rsa k\u00fctlenin yakla\u015f\u0131k y\u00fczde 20 ila 35’inin kalaca\u011f\u0131 belirtildi.<\/p>\n
\n\tBuzullar\u0131n insanl\u0131\u011f\u0131n yakla\u015f\u0131k d\u00f6rtte biri i\u00e7in su kayna\u011f\u0131 oldu\u011fu Hindu Kush Himalayalar\u0131nda mevcut politikalar\u0131n buz k\u00fctlesinin sadece y\u00fczde 41’ini b\u0131rakaca\u011f\u0131, \u0131s\u0131nman\u0131n 1,5 derece ile s\u0131n\u0131rland\u0131r\u0131lmas\u0131 halinde ise y\u00fczde 83’\u00fcn\u00fcn kalaca\u011f\u0131 ifade edildi.<\/p>\n
\n\t\u0130klim bilimci ve politika enstit\u00fcs\u00fc Climate Analytics’in CEO’su Bill Hare, 30 y\u0131l \u00f6ncesine g\u00f6re alt\u0131 kat daha h\u0131zl\u0131 eriyen buz \u00f6rt\u00fcleri, rekor h\u0131zda yok olan deniz buzu ve da\u011f buzullar\u0131, ac\u0131mas\u0131zca y\u00fckselen deniz seviyeleri ve asitlenen kutup okyanuslar\u0131n\u0131n insan \u00f6l\u00e7e\u011finde geri d\u00f6nd\u00fcr\u00fclemez hale geldi\u011fini s\u00f6yledi. Hare, bu durumun d\u00fcnya \u00e7ap\u0131nda sonu\u00e7lar do\u011furdu\u011funu ve iklim etkilerini uyum s\u0131n\u0131rlar\u0131n\u0131n \u00f6tesine ta\u015f\u0131d\u0131\u011f\u0131n\u0131 kaydetti.<\/p>\n
\n\tHare, iklim eylemini zay\u0131flatmay\u0131 ba\u015faran her h\u00fck\u00fcmet bakan\u0131 ve fosil<\/a> yak\u0131t<\/a> y\u00f6neticisinin bu rapora bak\u0131p eylemlerinin ya\u015fad\u0131\u011f\u0131m\u0131z d\u00fcnyay\u0131 nas\u0131l temelden tahrip etti\u011fini g\u00f6rebilece\u011fini s\u00f6zlerine ekledi.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"