Sina Mosen is a PhD researcher at the Institute for Sustainability Education and Transdisciplinary Research (SETRI) at Leuphana University Lüneburg. She holds master's degrees from the University of Bonn and the University of Oxford and is currently researching self-efficacy as a lever for the professional development of higher education teachers. In addition, she coordinates a project on the implementation of ESD in Higher Education at the University of Bonn.