The critical role of funders in shrinking the carbon footprint of research.

Competing Interests: This analysis was not commissioned or endorsed by the European Research Council or the European and Developing Countries Clinical Trials Partnership. We acknowledge Olivier Berné (Institut de Recherche en Astrophysique et Planétologie, CNRS, CNES and Université de Toulouse, France) for feedback on the article, the support of Ezgi Taskopru, Benjamin Mordmüller, Matthew McCall, Joep Joosten, Wouter Graumans, Gijs Overheul, Nicholas Proellochs, Annie Yang, Roos de Jong, Rebecca Halbach, Alex van der Starre, Gwendolyn Thyen, Merel Smit, Kjerstin Lanke, Valerie Betting, and Ole Mulder (all Radboud University Medical Center, Nijmegen, The Netherlands) in retrieving publicly available European Research Council Starting Grant data. Martijn Gerretsen, David Burger, and Jonathan Briese (Radboud University Medical Center, Nijmegen, The Netherlands) helped with acquiring details on travel budgets in research grants; Michiel Akkermans assisted with the travel map. We declare no competing interests. KW is supported by a grant from the Bill & Melinda Gates Foundation (OPP1159477), the funder played no part in writing this paper.