TIANJIN, June 28, 2016 (Xinhua) -- Lin Boqiang, director of China Center for Energy Economics Research (CCEER) of Xiamen University, speaks during a discussion on solving China's pollution problems at the Annual Meeting of the New Champions 2016, also known as the Summer Davos Forum, in Tianjin, north China, June 28, 2016. (Xinhua/Yue Yuewei)
