Kammen, Daniel M., 1962-

Daniel Merson Kammen (born 1962) is an American scientist, renewable energy expert, and former government figure. Since July 1, 2025, he has been a Bloomberg Distinguished Professor at the Johns Hopkins University. Before joining Hopkins, he fully retired from the University of California, Berkeley where he was the Distinguished Professor of Energy in the Energy and Resources Group. Kammen is noted as a coordinating lead author for the Intergovernmental Panel on Climate Change, which won the 2007 Nobel Peace Prize for their report, Climate Change 2007, assessing man-made global warming. In 1998, Kammen was elected a permanent fellow of the African Academy of Sciences, and in 2007 received the Distinguished Citizen Award from the Commonwealth Club of California. Kammen was elected a member of the National Academy of Sciences in 2025.