On March 31st, the 4th International Conference on Intelligent, Green & Energy Efficient Building & New Technologies and Products Expo, jointly sponsored by the Ministry of Housing and Urban-rural Construction, MOST, the National Development and Reform Commission, the Ministry of Environment Protection, the Ministry of Finance and the government agencies of the US, the UK, France and Germany, was held in Beijing. The conference aims to exhibit the latest achievements in architecture, study architectural technologies and policies, promote energy conservation and emissions reduction in buildings and realize harmony between building and nature.