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JAHRESRUECKBLICK 2007 - AUSLAND - KLIMAGIPFEL IN BALI: U.N. Secretary General Ban Ki-moon addresses high level delegates to the U.N. Climate Change Conference Saturday Dec. 15, 2007, in Nusa Dua, Bali, Indonesia. The U.N. climate conference adopted a plan to negotiate a new global warming pact by 2009 after the United States suddenly reversed its opposition Saturday to changes proposed by developing nations. (KEYSTONE/AP Photo/Ed Wray)