| Australian Association of Bush Regenerators | | AABR was established out of concern for the continuing survival and integrity of bushland and its dependent fauna in or near bushland areas, and seeks new members and friends for promoting good work practices in natural areas. |
| Australian Conservation Foundation | | Australia's leading environment group covers national environmental issues: forests, national parks, uranium mining, global warming, world heritage, rivers, recycling, pollution, wilderness and endangered species. |
| Bushcare Tasmania | | Bushcare is a program to help landowners and community groups manage native bush. This site helps you assess native bush on your property and develop strategies to manage it for the future. |
| Canadian Council on Ecological Areas | | The CCEA is committed to establishing a comprehensive network of protected areas linked together in a system that will protect Canada's terrestrial and aquatic diversity in perpetuity. |
| Center for Ecosystem Survival | | Committed to the advancement of worldwide conservation through the preservation of threatened habitats around the world. CES provides a vital opportunity for individuals to do their part in the preservation of the world's natural resources. |
| Center for Public Environmental Oversight | | Promotes and facilitates public participation in the oversight of environmental activities, including but not limited to the remediation of federal facilities, private "Superfund" sites, and Brownfields. |
| Center for Respect of Life and Environment | | The work of the Center is to awaken people's ecological sensibilities and to transform lifestyles, institutional practices, and social policies to support the community of life. |
| Children of the Baltic | | Organization works in the field of ecological education and protection of nature on the south coast of Gulf of Finland in the Saint Petersburg and Lomonosov town (Leningrad region). |
| Clean Islands International, Inc. | | Providing educational and technical assistance to island communities (Caribbean region) for the preservation and beautification of indigenous natural environments and the sustainable development of proper solid waste handling practices. |
| Cold Mountain, Cold Rivers | | A non-profit environmental and human rights group based in Montana. Areas of focus include: toxics, chlorine, pulp and paper, forest health, buffalo, local campaigns and, videography. |
| Colorado Natural Areas Program | | Information on Colorado native plant communities, geologic formations, paleontological localities and habitat for rare plants or animals, native plant revegetation guide, wetlands best management practices, research grant information, and weed management. |
| Conservation Foundation | | The group was founded by David Bellamy and David Shreeve to provide a means for people in public, private, and non-profit sectors to collaborate on environmental causes. |
| David Suzuki Foundation | | An environmental non-profit organization registered in Canada, working to design a vision of Earth in which humans live within the planet's productive capacity, and finding and communicating practical steps to bring that vision to reality. |
| EMonument | | Organization providing assistance in quality assurance management for the environment. Operates internationally. Information about past projects and recommended approaches for addressing food safety, obsolete pesticide disposal, and other problems. |
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