Daniel Kammen, born in 1962, received his undergraduate degree in physics from Cornell University and his doctorate in physics from Harvard in 1988 for his work on theoretical solid state physics and computational biophysics. From 1993 to 1999 he was professor and later chair of the Science, Technology and Environmental Policy Program at Princeton University in the Woodrow Wilson School of Public and International Affairs. He then moved to the Department of Nuclear Engineering at the University of California, Berkeley, where he is now teaching public policy and nuclear engineering. Kammen is also the founding Director of the Renewable and Appropriate Energy Laboratory. His main research interest lies in science and technology policy with a focus on energy, development and environmental management, and global environmental change including the mitigation of greenhouse gas emissions and resource consumption.