Contributions by: Steffen Bauer, Steinar Andresen, Kyla Tienhaara, Amandine Orsini, Robert Falkner, Aarti Gupta, Bernd Siebenhüner, Karin Bäckstrand, Sabine Campe, Sander Chan, Aysem Mert, Marco Schäferhoff, Harriet Bulkeley, Matthew Hoffmann, Stacy D. VanDeveer, Victoria Milledge, Fariborz Zelli, Harro van Asselt, Per-Olof Busch, Tatiana Kluvánková-Oravská, Veronika Chobotová, Daniel Compagnon, Frank Biermann, Philipp Pattberg