Birle\u015fmi\u015f Milletler (BM) b\u00fcnyesindeki H\u00fck\u00fcmetler Aras\u0131 \u0130klim De\u011fi\u015fikli\u011fi Paneli (IPCC), a\u00e7\u0131klad\u0131\u011f\u0131 yeni raporda iklim de\u011fi\u015fikli\u011finin “yayg\u0131n, h\u0131zl\u0131 ve yo\u011fun” oldu\u011fu uyar\u0131s\u0131nda bulundu.<\/p>\n
IPCC’nin t\u00fcm d\u00fcnyada merakla beklenen ve 66 \u00fclkeden 234 bilim insan\u0131n\u0131n 5 y\u0131ll\u0131k \u00e7al\u0131\u015fmayla haz\u0131rlad\u0131\u011f\u0131 alt\u0131nc\u0131 rapor \u00f6rg\u00fct\u00fcn \u0130svi\u00e7re’nin Cenevre kentindeki merkezinde a\u00e7\u0131kland\u0131.<\/p>\n
“\u0130klim De\u011fi\u015fikli\u011fi 2021: Fizik Biliminin Temeli” ba\u015fl\u0131kl\u0131 rapor, 6 A\u011fustos Cuma IPCC \u00fcyesi 195 \u00fcye \u00fclke taraf\u0131ndan sanal ortamda d\u00fczenlenen oturumda onayland\u0131.<\/p>\n
\u0130kinci k\u0131sm\u0131 2022’de yay\u0131mlanacak raporda, “iklimde g\u00f6zlemlenen de\u011fi\u015fikliklerin \u00e7o\u011fu, y\u00fcz binlerce y\u0131l de\u011filse de binlerce y\u0131ld\u0131r g\u00f6r\u00fclmedi ve \u00f6rne\u011fin devam eden deniz seviyesinin y\u00fckselmesi gibi, halihaz\u0131rda etkin olan (harekete ge\u00e7en) baz\u0131 de\u011fi\u015fiklikler, y\u00fczlerce ila binlerce y\u0131l boyunca geri d\u00f6nd\u00fcr\u00fclemez (geri d\u00f6n\u00fc\u015f\u00fc yok).” ifadesi yer ald\u0131.<\/p>\n
Karbondioksit (CO2) ve di\u011fer sera gazlar\u0131n\u0131n emisyonlar\u0131ndaki g\u00fc\u00e7l\u00fc ve s\u00fcrekli azalmalar\u0131n iklim de\u011fi\u015fikli\u011fini s\u0131n\u0131rlayaca\u011f\u0131n\u0131n alt\u0131 \u00e7izilen raporda, “Hava kalitesi i\u00e7in faydalar h\u0131zla gelse de IPCC’ye g\u00f6re k\u00fcresel s\u0131cakl\u0131klar\u0131n istikrara kavu\u015fmas\u0131 20-30 y\u0131l s\u00fcrebilir.” \u00f6ng\u00f6r\u00fcs\u00fcnde bulunuldu.<\/p>\n
1988’de kurulan IPCC’nin G\u00fcney Koreli Ba\u015fkan\u0131 Hoesung Lee rapora ili\u015fkin, “Bu rapor, istisnai ko\u015fullar alt\u0131ndaki ola\u011fan\u00fcst\u00fc \u00e7abalar\u0131 yans\u0131t\u0131yor. Bu rapordaki yenilikler ve iklim biliminde yans\u0131tt\u0131\u011f\u0131 ilerlemeler, iklim m\u00fczakereleri ve karar alma s\u00fcre\u00e7lerine paha bi\u00e7ilmez girdi sa\u011fl\u0131yor.” de\u011ferlendirmesinde bulundu.<\/p>\n
Gelecek on y\u0131llarda 1,5 santigrat derecelik k\u00fcresel \u0131s\u0131nma seviyesini ge\u00e7me ihtimaline ili\u015fkin yeni tahminler sunan raporda, “\u0130klim de\u011fi\u015fikli\u011finde ani, h\u0131zl\u0131 ve b\u00fcy\u00fck \u00f6l\u00e7ekli azalmalar olmad\u0131k\u00e7a, sera gaz\u0131 emisyonlar\u0131, \u0131s\u0131nmay\u0131 1,5 santigrat derece, hatta 2 santigrat dereceye kadar s\u0131n\u0131rlamas\u0131 ula\u015f\u0131lmaz olacakt\u0131r.” ifadesi kullan\u0131ld\u0131.<\/p>\n
\u0130nsan faaliyetlerinden kaynaklanan sera gaz\u0131 emisyonlar\u0131n\u0131n 1850-1900’dan bu yana yakla\u015f\u0131k 1,1 santigrat derece \u0131s\u0131nmadan sorumlu oldu\u011funa dikkati \u00e7ekilen raporda, gelecek 20 y\u0131lda ortalama k\u00fcresel s\u0131cakl\u0131\u011f\u0131n 1,5 santigrat dereceye ula\u015fmas\u0131 veya hatta bu \u0131s\u0131nmay\u0131 a\u015fmas\u0131n\u0131n beklendi\u011fi kaydedildi.<\/p>\n
Raporda, bu de\u011ferlendirmenin, iklim sisteminin insan kaynakl\u0131 sera gaz\u0131 emisyonlar\u0131na tepkisine ili\u015fkin bilimsel anlay\u0131\u015ftaki ilerlemenin yan\u0131 s\u0131ra tarihi \u0131s\u0131nmay\u0131 de\u011ferlendirmek i\u00e7in geli\u015ftirilmi\u015f g\u00f6zlemsel veri k\u00fcmelerine dayand\u0131\u011f\u0131 belirtildi.<\/p>\n
IPCC \u00c7al\u0131\u015fma Grubu E\u015f Ba\u015fkan\u0131 Valerie Masson-Delmotte, raporun iklim de\u011fi\u015fikli\u011fine ili\u015fkin ger\u00e7e\u011fin yans\u0131mas\u0131 oldu\u011funu vurgulayarak, “Art\u0131k nereye gitti\u011fimizi, ne yap\u0131labilece\u011fini ve nas\u0131l haz\u0131rlanabilece\u011fimizi anlamak i\u00e7in gerekli olan ge\u00e7mi\u015f, \u015fimdiki ve gelecekteki iklimin \u00e7ok daha net resmine sahibiz.” bilgisini payla\u015ft\u0131.<\/p>\n
“Ya\u015fad\u0131\u011f\u0131m\u0131z de\u011fi\u015fiklikler ilave \u0131s\u0131nma ile artacak.” ifadesini kullanan IPCC’nin di\u011fer E\u015f Ba\u015fkan\u0131 Panmao Zhai de iklim de\u011fi\u015fikli\u011finin zaten d\u00fcnyadaki her b\u00f6lgeyi \u00e7e\u015fitli \u015fekillerde etkiledi\u011fine i\u015faret etti.<\/p>\n
Raporda ayr\u0131ca gelecek on y\u0131llarda iklim de\u011fi\u015fikliklerinin t\u00fcm b\u00f6lgelerde artaca\u011f\u0131n\u0131 \u00f6ng\u00f6r\u00fcrken, 1,5 santigrat derece k\u00fcresel \u0131s\u0131nmayla s\u0131cak hava dalgalar\u0131n\u0131n artaca\u011f\u0131 vurgulanan raporda, s\u0131cak mevsimlerin uzun, so\u011fuk mevsimlerin ise k\u0131sa olaca\u011f\u0131 kaydedildi.<\/p>\n
\u0130klim de\u011fi\u015fikli\u011finin “yayg\u0131n, h\u0131zl\u0131 ve yo\u011fun” oldu\u011fu uyar\u0131s\u0131nda bulunulan raporda, ayr\u0131ca 2 santigrat derece k\u00fcresel \u0131s\u0131nmada a\u015f\u0131r\u0131 s\u0131cakl\u0131klar\u0131n tar\u0131m ve sa\u011fl\u0131k i\u00e7in kritik tolerans e\u015fiklerine daha s\u0131k ula\u015faca\u011f\u0131n\u0131 g\u00f6sterdi\u011fi kaydedildi.<\/p>\n
Birle\u015fmi\u015f Milletler ile D\u00fcnya Meteoroloji \u00d6rg\u00fct\u00fcne \u00fcye \u00fclkelerden olu\u015fan “\u0130klim De\u011fi\u015fikli\u011fi H\u00fck\u00fcmetler Aras\u0131 Paneli (IPCC) 5 ila 7 y\u0131lda bir d\u00fcnyan\u0131n iklim sisteminin geldi\u011fi durumla ilgili de\u011ferlendirme raporlar\u0131 haz\u0131rlayarak duyuruyor. Bu raporlardan ilki 1990, ikincisi 1996, \u00fc\u00e7\u00fcnc\u00fcs\u00fc 2001, d\u00f6rd\u00fcnc\u00fcs\u00fc 2007, be\u015fincisi ise 2013 ve Eyl\u00fcl 2014 aras\u0131nda par\u00e7alar halinde yay\u0131mland\u0131.<\/p>\n","protected":false},"excerpt":{"rendered":"
Birle\u015fmi\u015f Milletler (BM) b\u00fcnyesindeki H\u00fck\u00fcmetler Aras\u0131 \u0130klim De\u011fi\u015fikli\u011fi Paneli (IPCC), a\u00e7\u0131klad\u0131\u011f\u0131 yeni raporda iklim de\u011fi\u015fikli\u011finin “yayg\u0131n, h\u0131zl\u0131 ve yo\u011fun” oldu\u011fu uyar\u0131s\u0131nda bulundu. IPCC’nin t\u00fcm d\u00fcnyada merakla beklenen ve 66 \u00fclkeden 234 bilim insan\u0131n\u0131n 5 y\u0131ll\u0131k \u00e7al\u0131\u015fmayla haz\u0131rlad\u0131\u011f\u0131 alt\u0131nc\u0131 rapor \u00f6rg\u00fct\u00fcn \u0130svi\u00e7re’nin Cenevre kentindeki merkezinde a\u00e7\u0131kland\u0131. “\u0130klim De\u011fi\u015fikli\u011fi 2021: Fizik Biliminin Temeli” ba\u015fl\u0131kl\u0131 rapor, 6 A\u011fustos …<\/p>\n","protected":false},"author":1,"featured_media":36869,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[239],"tags":[533,534],"class_list":["post-36867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saglikyasam","tag-dunya","tag-iklim-degisikligi"],"yoast_head":"\n