Denmark's Prime Minister Lars Lokke Rasmussen attends a night plenary meeting at the United Nations Climate Change Conference (COP15) at the Bella Center in Copenhagen, December 19, 2009. The UN climate change conference failed to adopt the Copenhagen Accord on December 19. [Xinhua]

UN's Secretary General Ban Ki-Moon (R) talks with UN Climate chief de Boer during a night plenary meeting at the United Nations Climate Change Conference (COP15) at the Bella Center in Copenhagen, December 19, 2009.The UN climate change conference failed to adopt the Copenhagen Accord on December 19. [Xinhua]