According to Copenhagen of Xinhua News Agency on December 7 report local time 7 days 10 when make 40 minutes (Beijing time 7 days 17 when make) 40 minutes, congress of U.N. weather variation kicks off in Danish capital Copenhagen. The official name that Bencihui discusses is” convention of frame of U.N. weather variationconclude a treaty the 15th times square conference andKyoto protocolconclude a treaty the 5th times square conference. The main purpose that Bencihui discusses is to discuss 2012Kyoto protocolthe first acceptance period the greenhouse gas after expiring decreases an arrangement. After the opening performance that takes weather variation seriously in a paragraph of appeal, danish premier pulls Simusen to cause opening decline above all.