| A Model Wetlands Ordinance for Indiana Communities: Presents a model wetlands protection ordinance compatible with state planning and zoning laws. |
| Hoosier Herpetological Society: A non-profit organization dedicated to the education of its membership and the conservation of all reptiles and amphibians. Includes information about meetings, events, and membership details. Located in Indianapolis. |
| Indiana Academy of Science: A non-profit organization promoting scientific research and in Indiana. |
| Indiana Astronomical Society: Information on the organization, events, light pollution, photo album and membership. |
| Indiana Department of Natural Resources: Provides information about the states wildlife resources and recreation. Includes tips on wildlife watching and reminders. |
| Indiana Energy Conference: A public event for people to explore their culture's relationship with energy. The purpose is to discuss experiences, share ideas, explore action, and build community. |
| Indiana Environmental Report: News and views affecting Indiana's environment. |
| Indiana Geological Survey: Provides services that contribute to the wise stewardship of Indiana's energy, mineral, and ground-water resources. Includes staff directory, a mission statement and history, events, projects and publications. Located in Bloomington. |
| Indiana Soybean Board: Conducts soybean promotion and research. Provides consumer information, producer information, industry information programs, and market development activities. |
| Indiana Woodland Steward: Information on local forests, a calendar of events, and links to other forestry sites. A quarterly publication promoting the wise use of forest resources is also available. |
| Mike Walter's Indiana Earth Page: Annotated links to sites about Indiana's environment. |
| The Indiana 4-H Foundation: A not-for-profit statewide organization that actively obtains contributions to support Indiana 4-H programs. |
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