Dennis Anderson is Emeritus Professor of Energy and Environmental Studies at Imperial College London. He was previously director of the College’s Centre for Energy Policy and Technology (ICEPT), an economist and later the Energy Adviser of the World Bank, Chief Economist of Shell and had earlier worked as an engineer and reactor physicist in the electricity supply industry. He provided advice to the Stern team on the technologies, costs, and policies for carbon abatement in the energy sector and wrote background papers on the subject.