DAN LASHOF is the director of NRDC's climate center and is active in the areas of national energy policy, climate science and solutions to global warming. Dan is involved in developing federal legislation to place enforceable limits on carbon dioxide and other heat-trapping pollutants and to reduce America's dangerous dependence on oil. He has followed international climate negotiations since their inception and is a lead author of the Special Report of the Intergovernmental Panel on Climate Change on the role of land-use change and forestry in exacerbating or mitigating global warming. He holds a bachelor's degree in physics and mathematics from Harvard University and a doctorate from the University of California at Berkeley. He has taught environmental science as an adjunct professor at the University of Maryland and is the author of numerous articles on climate change science and policy. He blogs on NRDC's Switchboard.