Encyclopedia of Earth and Space Science by Covers the development and science of the earth and other planets of our solar system
Encyclopedia of Global Warming and Climate Change by Comprehensive encyclopedia on causes and effects of global warming
Energy and the Environment: Coal and Oil by An encyclopedia covering the technology and history of coal and oil. Includes economic and enviromental aspects.
Energy and the Environment: Natural Gas and Hydrogen by This encyclopedia covers business and technological aspects of these two fuels.
Energy and the Environment: Solar and Geothermal Energy by This encyclopedia covers business and technological aspects of these two fuels
Energy and the Environment: Wind and Water by This encyclopedia covers business and technological aspects of these two fuels
Glossary of Geology by 
Macmillan Encyclopedia of Earth Sciences by 
McGraw-Hill Encyclopedia of Science and Technology by A comprehensive encyclopedia covering all the sciences
The Penguin Dictionary of Geography by 
