JA Amooli (Lamont‐Doherty Earth Observatory Columbia University New York NY USA), RL Miller (Center for Climate Systems Research Columbia University New York NY USA), K Tsigaridis (Center for Climate Systems Research Columbia University New York NY USA), S Chowdhury (CICERO Center for International Climate Research Oslo Norway), Y Zhang (Lamont‐Doherty Earth Observatory Columbia University New York NY USA), CA Toolan (Department of Meteorology University of Reading Reading UK), S Ahmadi (National Centre for Atmospheric Science University of Reading Reading UK), RJ Allen (University of California Riverside Riverside CA USA), MT Elling (Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder CO USA), AML Ekman (Department of Meteorology Bolin Centre for Climate Research Stockholm University Stockholm Sweden), L Fraser‐Leach (Department of Physics University of Toronto Toronto ON Canada), P Griffiths (School of Chemistry University of Bristol Bristol UK), J Keeble (Lancaster Environment Centre Lancaster University Lancaster UK), T Koshiro (Meteorological Research Institute Japan Meteorological Agency Ibaraki Japan), P Kushner (Department of Physics University of Toronto Toronto ON Canada), A Lewinschal (Department of Meteorology Bolin Centre for Climate Research Stockholm University Stockholm Sweden), MT Lund (CICERO Center for International Climate Research Oslo Norway), M MacRae (STFC Rutherford Appleton Lab.), R Makkonen (Finnish Meteorological Institute Helsinki Finland), J Merikanto (Finnish Meteorological Institute Helsinki Finland), L Nazarenko (NASA Goddard Institute for Space Studies New York NY USA), P Nabat (Météo‐France CNRS University Toulouse CNRM Toulouse France), D O'Donnell (Finnish Meteorological Institute Helsinki Finland), N Oshima (Meteorological Research Institute Japan Meteorological Agency Ibaraki Japan), G Persad (Jackson School of Geosciences The University of Texas at Austin Austin TX USA), ST Rumbold (National Centre for Atmospheric Science University of Reading Reading UK), K von Salzen (Canadian Centre for Climate Modelling and Analysis Environment and Climate Change Canada Victoria BC Canada), BH Samset (CICERO Center for International Climate Research Oslo Norway), NC Swart (Canadian Centre for Climate Modelling and Analysis Environment and Climate Change Canada Victoria BC Canada), T Takemura (Research Institute for Applied Mechanics Kyushu University Fukuoka Japan), LJ Wilcox (Department of Meteorology University of Reading Reading UK), DM Westervelt (Lamont‐Doherty Earth Observatory Columbia University New York NY USA)