Kailiang Yu, University of Utah, Salt Lake City, UT, United States, Ashley Ballantyne, University of Montana, Missoula, MT, United States, Thomas W Crowther, ETH Zurich, Zurich, Switzerland, Gabriel George Katul, Duke Univ, Durham, NC, United States, Han Y.H. Chen, Lakehead University, Thunder Bay, ON, Canada, Thomas Pugh, University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, Eric B. Searle, Lakehead University, Thunder Bay, Canada, Arthur Gessler, WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland, Hans Pretzsch, Technical University of Munich, Freising, Germany and Philippe Ciais, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France