Siv K Lauvset¹, Nico Lange², Toste S Tanhua³, Henry C Bittig⁴, Are Olsen⁵, Marta Álvarez⁶, Kumiko Azetsu-Scott⁷, Peter Brown⁸, Brendan R Carter⁹, Leticia Cotrim da Cunha¹⁰, Dr. Matthew Paul Humphreys, PhD¹¹, Mario Hoppema¹², Masao Ishii¹³, Emil Jeansson¹⁴, Akihiko Murata¹⁵, Jens Daniel Müller¹⁶, Fiz F Pérez¹⁷, Reiner Steinfeldt¹⁸, Adam Ulfsbo¹⁹, Anton Velo¹⁷, Ryan J. Woosley²⁰ and GLODAP team, (1)NORCE Research, Department of Climate and Environment, Bergen, Norway, (2)NORCE Research, Climate and Environment, Bjerknes Centre for Climate Research, Bergen, Norway, (3)Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany, (4)Leibniz Institute for Baltic Sea Research, 18119 Warnemunde, Germany, (5)University of Bergen, Geophysical Institute and Bjerknes Centre for Climate Research, Bergen, Norway, (6)CSIC, A Coruña, Spain, (7)Bedford Inst Oceanography, Dartmouth, NS, Canada, (8)National Oceanography Center, Southampton, United Kingdom, (9)University of Washington Seattle, Seattle, United States, (10)UERJ Rio de Janeiro State University, NA, Brazil, (11)NIOZ Royal Netherlands Institute for Sea Research, Department of Ocean Systems, Texel, Netherlands, (12)AWI, Bremerhaven, Germany, (13)Meteorological Research Institute, Ibaraki, Japan, (14)NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway, (15)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan, (16)Carbon to Sea Initiative, Washington D.C., United States, (17)Instituto de Investigaciones Marinas, CSIC, Eduardo Cabello 6, 36208, Vigo, Spain, (18)Institute of Environmental Physics (IUP) University of Bremen, Bremen, Germany, (19)University of Gothenburg, Gothenburg, Sweden, (20)Massachusetts Institute of Technology, Center for Global Change Science, Cambridge, United States