In 2014 Carl Mas was the SDSN Manager for the Deep Decarbonization Pathways Project (DDPP) and supported analysis and development of energy and climate policies and programs.

Carl has over 15 years of project management and research experience in the public and private sectors. Prior to joining the SDSN, Carl was a Senior Project Manager with the New York State Energy Research and Development Authority (NYSERDA) where he managed projects and served as a policy and program advisor in the areas of renewable energy, climate change mitigation, environmental impacts of energy systems, and alternative transportation fuels. Carl also worked as a researcher at two U.S. Department of Energy National Laboratories: Sandia National Laboratory and the National Renewable Energy Laboratory; as a energy systems analyst and team leader for a start-up fuel cell company; and as a consultant for a not-for-profit international development organization focused on renewable energy policy development and market growth. Carl received a dual Masters in Science from the University of California, Berkeley, in Mechanical Engineering and Energy & Resources.