Keywan Riahi is the Director of the Energy Program at the International Institute for Applied Systems Analysis (IIASA). He is lecturing as a Visiting Professor of Energy Systems Analysis at the Graz University of Technology and has recently also joined the Payne Institute of the Colorado School of Mines as a Fellow and serves as an External Faculty Member at the Institute for Advanced Study (IAS) at the University of Amsterdam. In 2021, Mr Riahi was appointed to the 10-Member Group by the United Nations Secretary-General Guterres to advise on Science, Technology and Innovation for the implementation of the Agenda 2030. Mr Riahi ranks first in the recent list of 1000 most influential climate scientists by Reuters and has been selected as Highly Cited Researcher worldwide by the Web of Science/Clarivate Analytics (2016-2020). In 2015 he also received the IAMC award for extraordinary contributions to the field of integrated assessment modelling. His publications receive more than 10.000 citations per year and cover inter alia the following disciplines: mathematics, economics, finance, engineering/energy, and environmental sciences.