He used to be a senior project officer, energy and environment consultant of the Beijing Representative Office of the United Nations Development Programme, and a senior economist of the Social and Economic Assessment Working Group of the United Nations Panel on Climate Change (Netherlands). During the collective study in the Political Bureau of the Central Committee (20 10), I explained the Thoughts on Realizing the CO2 Emission Reduction Target in 2020.

The main research fields include sustainable development economics, land and resource economics, world economy, energy and climate policy, etc. Presided over a number of international cooperation, national natural science foundation, scientific and technological support; 973 Project, 28 research projects entrusted by national ministries and local provinces and cities, academic monographs written and edited in Science (2008, 10,2012,6), Nature (2009,10) and Oxford Economic Policy Review.

He won the second prize of the second outstanding achievement of China Academy of Social Sciences (monograph Economic Analysis of Sustainable Development Road (1996, Renmin University of China Press)), the first prize of the fourth outstanding achievement of China Academy of Social Sciences (paper Conceptual Framework and Empirical Data of Humanistic Development (2002, China Social Sciences)) and the 14th Sun Economic Science Award. -The carbon budget scheme-a fair and sustainable framework of the international climate system. Won the title of Green China Person of the Year (20 10-20 1 1).