UN Secretary-General Ban Ki-moon (2nd R), Danish Prime Minister Lars Lokke Rasmussen (2nd L), President of COP15 Connis Hedegaard (L) and executive-secretary of the UN climate conference Yvo de Boer attend the press conference after the opening of the high-level segment of the United Nations Framework Climage Change Conference in Copenhagen, Denmark, Dec. 15, 2009. (Xinhua/Zeng Yi)