ffi ciency and environmental impact : general discussion

Toru H. Okabe, Olga Kuzmina, John M. Slattery, Cairong Jiang, Tim Sudmeier, Linpo Yu, Han Wang, Wei Xiao, Liang Xu, Xiangling Yue, Yiyang Kong, Andrew Doherty, Geir Martin Haarberg, Shuqiang Jiao, Qian Xu, Hongmin Zhu, Dihua Wang, Paul Madden, Daniel Cooper, Kathie McGregor, Chaohui Wei, Binjie Hu, Andrew Mount, John Irvine, Ali Kamali, Babak Khalaghi, Xianbo Jin, Yingjun Liu, George Zheng Chen, Xingli Zou, Gang Chen, Ye Liu, Majd Eshtaya, Derek Fray and Yating Yuan