Matthias Honegger is a research associate with the Institute for Advanced Sustainability Studies, climate policy consultant with Perspectives Climate Research, and PhD candidate at Utrecht University. After his Masters in environmental sciences from the Swiss Federal Institute of Technology he has worked on sectoral mitigation policies, national mitigation targets, UNFCCC negotiations and the emerging governance of geoengineering. Matthias researches differences in climate policy negotiators’ and observers’ views of solar geoengineering and carbon removal, their roots in diverging values and worldviews and the resulting tensions between popular expectations, economic models and actual policy planning and implementation. He is author and co-author on several articles, commentaries and reports on issues of policy design for carbon dioxide removal and solar radiation management geoengineering and has led the first assessment of potential effects that deployment of such technologies could have on the pursuit of the entirety of the Sustainable Development Goals.