This authoritative work emphasizes the vital role of carbon-neutral energy sources, transportation fuels, and associated technologies for establishing a sustainable energy future. Each chapter draws on the insight of world-renowned experts in such diverse fields as photochemistry, fuel-generating enzymes, nuclear energy, and alternative fuel vehicles. The book covers renewable, nuclear, and decarbonized fossil energy; hydrogen fuel, biofuels, and synthetic fuels; and photochemical, thermochemical, electrochemical, and biological systems. It also analyzes the technical, economic, and environmental challenges hindering widespread commercial adoption of carbon-neutral technologies.