The dominant role of semi-arid lands in the trend and variability of the land CO2 sink
Anders Ahlström1,2, Michael R Raupach3, Guy Schurgers4, Benjamin Smith5, Almut Arneth6, Martin Jung7, Markus Reichstein7, Josep Gili Canadell8, Pierre Friedlingstein9, Atul K. Jain10, Etsushi Kato11, Benjamin Poulter12, Stephen Sitch13, Benjamin David Stocker14, Nicolas Viovy15, Yingping Wang16, Andy Wiltshire17, Soenke Zaehle7 and Ning Zeng18, (1)Stanford University, Stanford, CA, United States, (2)Lund University, Physical Geography and Ecosystem Science, Lund, Sweden, (3)Australian National University, Canberra, Australia, (4)University of Copenhagen, Department of Geosciences and Natural Resource Management, København K, Denmark, (5)Vycarb, Brooklyn, NY, United States, (6)Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany, (7)Max Planck Institute for Biogeochemistry, Jena, Germany, (8)CSIRO Ocean and Atmosphere, Canberra, ACT, Australia, (9)University of Exeter, College of Engineering, Mathematics and Physical Sciences, Exeter, EX4, United Kingdom, (10)University of Illinois at Urbana Champaign, Urbana, United States, (11)NIES National Institute of Environmental Studies, Ibaraki, Japan, (12)NASA Goddard Space Flight Center, Greenbelt, United States, (13)University of Exeter, Faculty of Environment, Science and Economy, Exeter, United Kingdom, (14)Imperial College London, London, SW7, United Kingdom, (15)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (16)CSIRO, Ocean and Atmosphere Flagship, Aspendale, Australia, (17)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (18)University of Maryland College Park, College Park, MD, United States
