United Nations chief Ban Ki-moon leaves the stage after addressing... NachrichtenfotoAbschied,Ad-Dawhah,Ban Ki-moon,Bühne,Eröffnungszeremonie,Feierliche Veranstaltung,Golfstaaten,Katar,Plenarsitzung,UN-Klimarahmenkonvention,Umweltthemen,Vereinte Nationen,Vertikal,Vor Publikum sprechenPhotographer Collection: AFP 2012 AFPUnited Nations chief Ban Ki-moon leaves the stage after addressing the opening ceremony of Plenary Session of the High-Level Summit of the United Nations Framework Convention on Climate Change (UNFCCC) in the Qatari capital Doha on December 4, 2012. Ki-moon said the world was faced by a global warming 'crisis' and urged bickering negotiators at climate talks in Doha to show 'strong political commitment' and compromise. AFP PHOTO / AL-WATAN DOHA / KARIM JAAFAR == QATAR OUT == (Photo credit should read KARIM JAAFAR/AFP/Getty Images)