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Environmental Protection Agency
Committed to protecting the natural environment.
EPA Search your community
Enter a zip code and search an area for environmental information and data.
Indiana Department of Environmental Management
INSPIRE
INSPIRE.net website: Indiana Environment and Nature
United Nations Environment Programme
Database searchable by topic for United Nations research, publications and data on various environmental issues.
U.S. Geological Survey Environment Theme page
Studies, data collection, analysis and research of natural physical, chemical, and biological processes, and of the results of human actions.
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