Fabrice Lacroix, University of Bern, Institute of Geography, Bern, Switzerland, Moritz Mathis, Helmholtz-Zentrum Hereon, Geesthacht, Germany, Pierre A. G. Regnier, Department of Geosciences, Environment & Society (DGES), Université Libre de Bruxelles, Brussels, Belgium, Fabian Gomez, Northern Gulf Institute, Starkville, United States, Regina Rodrigues, Federal University of Santa Catarina, Florianopolis, SC, Brazil, Thomas L. Frolicher, University of Bern, Climate and Environmental Physics, Bern, Switzerland, Natacha Legrix, University of Liverpool, Liverpool, United Kingdom, Yohei Takano, NERC British Antarctic Survey, Cambridge, United Kingdom and Tatiana Ilyina, Universität Hamburg, Hamburg, Germany