Our fourth JUCCCE China Energy Forum used an innovative interactive and bilingual format to explore collaboration opportunities on sustainable technologies for China. The Nov. 19-20, 2011 event was hosted by the City of Chengdu, and co-organized by JUCCCE and China Energy Conservation and Environmental Protection (CECEP). Key topics discussed at the forum included international technologies, China's technology needs for the circular economy, and cross-sector, cross-border col