This book explores the various energy production options available to power companies in a carbon-constrained world. The three part treatment starts with an exposition of the short term options including Clean Coal and Carbon Capture and Sequestration Technology, Coal, and Emission trading. Renewable energy options such as Nuclear Energy, Wind power, Solar power, Hydro-electric, and Geothermal energy are explained along with their trade-offs and uncertainties inherent in evaluating and choosing different energy options and provides a framework for assessing policy solutions. This is followed by self-contained chapters of case-studies from all over the world. Other topics discussed in the book are Creating markets for tradable permits in the emerging carbon era, Global Action on Climate Change, The Impossibility of Staunching World CO2 Emissions and Energy efficiency.