This second edition deals with the development of energy technology from the time of early humans through antiquity, medieval times, and the Industrial Revolution. The author addresses the development of nuclear energy, energy supply and demand, geopolitics of energy, and the various environmental issues associated with energy use in general. This revised edition offers simple updates, as well as completely rewritten material, regarding the last decade in areas including global climate change, oil prices, renewable and alternative fuels, and diversion of civil nuclear energy programs into nuclear weapons proliferation.