Reda Amer;Timothy M.Kusky-Department of Earth and Space Sciences,Lamar University,Beaumont TX77710,USA;State Key Laboratory of Geological Processes and Mineral Resources,Center for Global Tectonics,School of Earth Sciences,Badong National Observatory and Research Station for Geohazards,China University of Geosciences,Wuhan 430074,China

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Zhang Chi-School of Government,Shanghai University of Political Science and Law

Yu Hongyuan;He Jing-Institute for Comparative Politics and Public Policy,Shanghai Institutes for International Studies(SIIS);SIIS

Zhai Kun;Zhang Tian-School of International Relations,Peking University;Institute of Regional and Country Studies,Peking University

Zhao Kejin-Center for Sino-US Relations at Tsinghua University

Wang Fan-China Foreign Affairs University

CHARLES ONUNAIJU-Center for China Studies,Abuja,Nigeria

GE LIJUN-

BENARD AYIEKO-

MA LI-

Yujia Zhai;Gang Liu;Walter G.J.van der Meer-Oasen Drinkwater,Gouda 2800 AC,Netherlands;Faculty of Science and Technology,University of Twente,Enschede 7500 AE,Netherlands;Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Sanitary Engineering Research Group,Department of Water Management,Faculty of Civil Engineering and Geosciences,Delft University of Technology,Delft 2600 GA,Netherlands

Simiao Chen;Hui Sun;Mei Heng;Xunliang Tong;Pascal Geldsetzer;Zhuoran Wang;Peixin Wu;Juntao Yang;Yu Hu;Chen Wang;Till B?rnighausen-Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730,China;Heidelberg Institute of Global Health(HIGH),Faculty of Medicine and University Hospital,Heidelberg University,Heidelberg 69120,Germany;Institute of Hematology,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,China;Department of Pulmonary and Critical Care Medicine,Beijing Hospital,Beijing 100730,China;National Center of Gerontology,Institute of Geriatric Medicine,Beijing 100730,China;Division of Primary Care and Population Health,Department of Medicine,Stanford University,Stanford,CA 94305,USA;Peking Union Medical College Hospital,Beijing 100730,China;State Key Laboratory of Medical Molecular Biology,Institute of Basic Medical Sciences,Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730,China;National Clinical Research Center for Respiratory Diseases,Beijing 100029,China;Department of Pulmonary and Critical Care Medicine,Center of Respiratory Medicine,China-Japan Friendship Hospital,Beijing 100029,China

Yi Xie;Dongyuan Zhao-Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology of China,China;Department of Chemistry,State Key Laboratory of Molecular Engineering of Polymers,Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Laboratory of Advanced Materials,and Collaborative Innovation Center of Chemistry for Energy Materials(iChEM),Fudan University,China

Shirish Ravan;Tom De Groeve;Lara Mani;Einar Bjorgo;Richard Moissl;Jose Miguel Roncero;Katherine Rowan;David Schuld;Leviticus A.Lewis;Romana Kofler-United Nations Office for Outer Space Affairs(UNOOSA),United Nations,1220 Vienna,Austria;European Commission Joint Research Centre,21027 Ispra,Italy;Centre for the Study of Existential Risk,University of Cambridge,Cambridge CB2 1SB,UK;Division for Satellite Analysis,United Nations Institute for Training and Research(UNITAR),1202 Geneva,Switzerland;European Space Agency/European Space Research and Technology Centre(ESA/ESTEC),2201 AZ Noordwijk,The Netherlands;Security and Situational Awareness Unit,European Commission's Directorate-General for European Civil Protection and Humanitarian Aid Operations,1049 Brussels,Belgium;Department of Communication,George Mason University,Fairfax,VA 22030,USA;Hagerty Consulting,Evanston,IL 60201,USA;Response Operations Division,Federal Emergency Management Agency,Washington,DC 20024,USA

Victor Marchezini;Luciana Resende Londe;Eloisa Beling Loose;Silvia Midori Saito;José A.Marengo-Cemaden-National Center for Monitoring and Early Warning of Natural Disasters,S?o Paulo 12.247-016,Brazil;Natural Hazards Center,Institute of Behavioral Science,University of Colorado Boulder,Boulder,CO 80309,USA;Programa de Pós-Gradua??o em Desastres Naturais,ICT/Unesp-Cemaden,S?o José dos Campos 12247-004,Brazil;Environmental Journalism Research Group,Universidade Federal do Rio Grande do Sul(UFGRS),Porto Alegre 90035-007,Brazil;Programa de Pós-Gradua??o em Desastres Naturais,Universidade Federal de Santa Catarina,Florianópolis 88.040-900,Brazil

LI Wenjun;CHEN Feng-Human Rights Institute,Southwest University of Political Science and Law

ZHANG Xiaoxiao;HU Liang-Wuhan University School of Law and Researcher of the Insti-tute of Human Rights at Wuhan University(A National Human Rights Education and Training Base)

Xue Ziwen;Li Yiran-SPI