Encyclopedia of EarthThe Encyclopedia of Earth (EoE) is an electronic reference about the Earth, its natural environments, and their interaction with society. The EoE is a free, expert-reviewed collection of content contributed by scholars, professionals, educators, practitioners and other experts. EOE content is mainly articles on topics, places, and biographies, plus international reports, brief definitions, and some eBooks, videos, and sound files. Topics covered range from biological diversity of living organisms, atmospheric sciences, biogeochemistry, oceanography, ecology, forestry, fisheries, marine biology, agriculture, aquaculture, to environmental engineering, environmental economics, and environmental sociology.