Doctorate in Physical Geography, Graduate School of Chinese Academy of Sciences, Beijing, China. Some 30 years of professional experience in science and policy, in the specific domains of ecosystems management, agriculture, environment and climate change at national, regional and global levels, in particular in developing countries. Former: Manager, Environment Program, International Centre for Integrated Mountain Development; Director, Chinese Ecosystem Research Network; Deputy Director-General, Bureau of Resources and Environment, Chinese Academy of Sciences; Deputy Secretary, Intergovernmental Panel on Climate Change (IPCC); Chief, Climate Change Adaptation Unit, United Nations Environment Programme. Currently, Chief Scientist and Acting Director, Science Division, United Nations Environment Programme.