1. a Department of Meteorology, Stockholm University, Stockholm, Sweden
2. b Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
3. c Nordita, KTH Royal Institute of Technology and Stockholm University, Stockholm, Sweden
4. d Swedish e-Science Research Centre, Stockholm, Sweden
5. e Joint Institute for Laboratory Astrophysics, University of Colorado Boulder, Boulder, Colorado
6. f Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, Colorado
7. g Department of Astronomy, Stockholm University, Stockholm, Sweden
8. h SINTEF Energy Research, Trondheim, Norway
9. i Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
10. j Department of Physics, Gothenburg University, Gothenburg, Sweden
11. k Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel