Agence France-Presse: GERMAN Environment Minister Sigmar Gabriel has slammed a lack of courage by the United States and emerging countries in struggling talks at the UN climate conference in Bali. "The problem is that some political leaders here lack the courage to transform into decisions what experts have elaborated," Mr Gabriel told German radio station Bayerischer Rundfunk from Indonesia. "Especially those (countries) that we must include in climate protection efforts," he …