The United Nations climate conference in Bali in December 2007 brought the breakthrough we needed by deciding that a global agreement for the period after 2012 should be reached by the end of 2009.
于2007年12月在巴厘举行的联合国气候会议决定到2009年年底前达成有关2012年后阶段的全球协定，从而带来了我们需要的突破。