NatureServe - Non-profit conservation organization working to provide the scientific data needed for informed action.
Science.gov - One comprehensive source to search over 38 databases and 1,950 selected websites offering scientific information from the U.S. government.
Trade and Environment Database (TED) - Includes environmental case studies divided into 28 different categories. This database may be reached from the above link to the International Affairs Pathfinder.
Wisconsin Department of Natural Resources - Dedicated to working with the citizens and businesses of Wisconsin while preserving and enhancing the natural resources of Wisconsin.