This article examines the key points of controversy and the prospects for the post-Copenhagen global climate change negotiations. While the Europeans and the U.S. try to abandon the principles of the Kyoto Protocol after 2012, the developing countries will strive to make the developed countries continue to accept differentiated responsibilities or obligations. The prospects of reaching a new legally binding international agreement on emissions reduction in the Cancun or South Africa summits may be diminishing. This article examines the key points of controversy and the prospects for the post-Copenhagen global climate change negotiations. While the Europeans and the US try to abandon the principles of the Kyoto Protocol after 2012, the developing countries will strive to make the approved countries continue to accept differentiated responsibilities or obligations. The prospects of reaching a new legally binding international agreement on emissions reduction in the Cancun or South Africa summits may be diminishing.