Ben W. Ebenhack is Associate Professor of Petroleum Engineering at MariettaCollege in Ohio. Following a career with a multinational petroleum company, hefounded the AHEAD Energy Corporation, a public charity that assists DevelopingCountries in their energy transitions. In 2011, he received the McConnellAward for service to humanity from the American Institute of Mining, Metallurgicaland Petroleum Engineers. He has authored numerous articles and presentationsabout energy, development and the environment. Daniel M. Martínez is Assistant Research Professor of Environmental Scienceat the University of Southern Maine, where he established the Applied EnergyLab. He received his Ph.D. in Chemical Engineering from the University of Rochester,where he became active with AHEAD. He continues to work side-by-side withBen Ebenhack on a number of projects related to energy use and impacts fromthe perspectives of both the Developed and the Developing Worlds.