Project to provide information on biological and water quality conditions of the Anacostia River. Covers natural and human history of the watershed, recent efforts to restore the river, and river quality reports, and has related web links and maps. Sponsored by the Metropolitan Washington Council of Governments.

Non-profit environmental organization that works to protect and restore the Anacostia River and its watershed through river clean-ups, planting trees, fighting pollution, and other programs. History, news, photos, program information, and calendar of events.

Network of individuals, businesses, and organizations working to create a sustainable future for the region.

Group of businesses concerned about the Anacostia River. Includes educational material on how businesses can reduce pollution, describes the group's activities, and has list of members, newsletters, and web links.

Searchable database of information and images. Includes organisms and regional nature and preservation areas in the D.C. area.

A project to restore the tree canopy of Washington, DC, administered by the Garden Clubs of America. Includes a review of the street tree inventory carried out in 2002.

A consortium of conservation organizations that meets regularly to focus on environmental problems specific to the DC region, exchange information, and coordinate strategies. Includes background documents (PDF files)

Seismic history of DC from the National Earthquake Information Center.

Committed to helping one hundred public high school students create opportunities for brighter futures through mentorship, educational enrichment, and the fostering of a sense of environmental stewardship.

Conducts a broad based program contributing to basic and developmental research and the implementation of new technologies for the florist and nursery industries.

Showcases plants that can survive the area's often snowy winters.

Information on the frequent mishaps under the streets of the city.

Acquires, develops, maintains and administers a regional system of parks in Montgomery and Prince George's Counties in Maryland.

Local affiliate of the National Association of Environmental Professionals.

Advocates transportation investments, land use policies, and community designs that enhance existing communities and the environment of the region.

Bibliography of books, articles, and other resources on the natural history of Washington, D.C. Compiled by Ryan Shepard.