Guanhua Xu, Member of the Chinese Academy of Sciences (CAS) in earth science (1991-), Academy of Sciences for the Developing World (ASDW), Royal Swedish Academy of Engineering Sciences (RSAES), and International Academy of Astro-nautics (IAA). Honorary Doctor of Public Service at University of Maryland College Park, Honorary Doctor at Chinese University of Hong Kong, and City University of Hong Kong.

Chair of the Scientific Steering Committee of the Department of Earth System Sci-ence, Tsinghua University; College of Global Climate Change and Earth System Science, Beijing Normal University; Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences.

He served as Vice President of the Chinese Academy of Sciences (1994-1995), Vice Minister of the National Committee of Science and Technology (1995-1998), Direc-tor of the Division of Earth Science of the Chinese Academy of Sciences (1996-2000), Vice minister of the Ministry of Science and Technology (1998-2001), Minis-ter of the Ministry of Science and Technology (2001-2007), Chair of the Science, Education, Culture, Health and Sports Committee of the National Committee of Chi-nese People’s Political Consultative Conference (2008- ), Chair of the Advisory Board on the “National Key Scientific Research Plan - Global Change Research”, Ministry of Science and Technology (2010- ), and Chair of the Advisory Board of the National Key Fundamental Research Plan (2011- ).