The work draws from natural, social, and engineering sciences to cover the following themes:
: Detailed coverage of fossil fuels (oil, natural gas, coal), nuclear energy, and renewable/alternative sources (solar, wind, hydro). Encyclopedia of Energy (Encyclopedia of Energy ...
: Focuses on energy systems, conservation methods, and end-use efficiency. Features & Structure The work draws from natural, social, and engineering
: Includes an extensive chronology of energy developments, international organization listings, and tables for physical property data and production figures. The work draws from natural
: Articles are arranged A–Z and typically include a glossary of terms, a "Defining Statement," and suggestions for further reading.