Lewis Akenji is Managing Director of the Berlin-based think tank Hot or Cool Institute. Lewis conceived the 1.5-degree lifestyles approach and has led publication of the foundational reports: "1.5-Degree Lifestyles: Targets and Options for Reducing Lifestyle Carbon Footprints" and "1.5-Degree Lifestyles: Towards A Fair Consumption Space for All". He has an M.Sc. Sustainable Resource Management (Technical University Munich, Germany) and a Ph.D. Political Economy (University of Helsinki, Finland).