clipped from: www.eoearth.org   

Welcome to the Encyclopedia of Earth, a new electronic reference about the Earth, its natural environments, and their interaction with society. The Encyclopedia is a free, fully searchable collection of articles written by scholars, professionals, educators, and experts who collaborate and review each other's work. The articles are written in non-technical language and will be useful to students, educators, scholars, professionals, as well as to the general public.

a stark reality of the Web: digital information on the environment is characterized by an abundance of "great piles of content" and a dearth of "piles of great content." In other words, there are many resources for environmental content, but there is no central repository of authoritative information that meets the needs of diverse user communities. Our goal is to make the Encyclopedia of Earth the largest reliable information resource on the environment in history