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Encyclopedia of Energy
Draws together all aspects of energy, covering a wealth of areas throughout the natural, social and engineering sciences, written by leading international authorities.
Encyclopedia of Global Warming and Climate Change by
Explores major topics related to global warming and climate change-ranging geographically from the North Pole to the South Pole, and thematically from social effects to scientific causes. Covers the science and history of climate change, the controversies over climate-change theories, the role of societies, the industrial and economic factors, and the sociological aspects of climate change.
Encyclopedia of Life
Encyclopedia of Life works with open access biodiversity knowledge providers around the world, including museums and libraries, universities and research centers, individual scientists, graduate students and citizen science communities, and several international open data hubs.
Searches more than 42 databases and more than 2000 selected Web sites, offering 200 million pages of authoritative U.S. government science information, including research and development results.
Calculators On-Line Center
Calculators for agriculture, mathematics, archaeology, geology, weather, radiation, chemistry, physics, engineering, etc.