This comprehensive four volume encyclopedia (2011) has 795 entries on major environmentalists, environmental organizations and movements, natural sites and resources, man-made structures, natural disasters, governmental policies, outdoor recreation and leisure activities, industries, cities, and animals. Articles by 357 scholars from American universities, research institutions, and private organizations, serve the needs of the educated layperson. The average entry is seven to ten paragraphs long with four to five references to secondary sources. It is an excellent starting point for research on the role of nature in the human past.
This database provides access to the full text of all volumes in the authoritative Cambridge Histories series. Volumes are grouped into topics, making it easy to search and browse through an array of historical subject areas. The extensive bibiographies and footnotes throughout enhance the value of this source.