1. Department of Environmental Science Stockholm University Stockholm Sweden
2. Bolin Centre for Climate Research Stockholm University Stockholm Sweden
3. Extreme Environments Research Laboratory École Polytechnique fédérale de Lausanne Sion Switzerland
4. Laboratory of Atmospheric Chemistry Paul Scherrer Institute Villigen Switzerland
5. Department of Physics and Atmospheric Science Dalhousie University Halifax NS Canada
6. Droplet Measurement Technologies LLC Boulder CO USA
7. Institute for Climate and Atmospheric Science School of Earth and Environment University of Leeds Leeds UK
8. Climate Research Division Environment and Climate Change Canada Toronto ON Canada
9. Department of Meteorology Stockholm University Stockholm Sweden
10. College of Engineering, Mathematics and Physical Sciences University of Exeter Exeter UK
11. Department of Environmental Systems Science ETH Zürich Zurich Switzerland
12. Air Quality Research Division Environment and Climate Change Canada Toronto ON Canada