Daniel Kammen is the James and Katherine Lau Distinguished Professor of Sustainability at the University of California, Berkeley, with parallel appointments in the Energy and Resources Group, the Goldman School of Public Policy, and the department of Nuclear Engineering. His work is focused on decarbonization, energy access, and climate justice. He has served as Senior Advisor for Energy and Innovation at the US Agency for International Development (USAID). Kammen is a Coordinating Lead Author for the IPCC. He is the Co-Chair of the UC Berkeley Roundtable on Climate and Environmental Justice (http://ceej.berkeley.edu)Kammen was appointed the first Environment and Climate Partnership for the Americas (ECPA) Fellow by Secretary of State Hilary R. Clinton in April 2010 and served as Science Envoy for Secretary of State John Kerry (2016- 2017). His research is focused on the science and policy of decarbonized energy systems, energy access, and environmental justice. He has published more than 450 papers, which are available on his laboratory website, the Renewable and Appropriate Energy Laboratory (RAEL, http://rael.berkeley.edu). His research is currently focused on: decarbonization of power systems around the world; energy access and social justice; materials science for low-carbon economies; big-data approaches to clean transportation, and on the electrification of health facilities across Africa (HETA). Kammen has founded or is on the board of over 10 companies, and has served the State of California and US federal government in expert and advisory capacities.