| Endangered Planet Foundation | 
| Environmental Foundation connecting the arts and technology with the environment,  Environmental festivals, environmental entertainment, symposium, eco, green festivals. » Details | 
| AgeSearch | 
| This service adds stratigraphic tags to search results. It might be useful for researchers, students, mining companies or the oil and gas industry. » Details | 
| American Society of Ichthyologists and Herpetologists | 
| Organization dedicated to the scientific study of fishes, amphibians and reptiles. Provides information on membership, the quarterly journal, meetings and conservation programs. » Details | 
| Australian Society for Limnology | 
| A scientific society whose focus is the study and management of inland waters. » Details | 
| CCEA | 
| 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. » Details | 
| Center For Alaskan Coastal Studies | 
| The (CACS) is a nonprofit environmental education organization in Homer, Alaska. » Details | 
| 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. » Details | 
| Citizens Environmental Coalition | 
| CEC is an information clearinghouse and communications  network for environmental issues in the Houston/Galveston,Texas, area. » Details | 
| 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. » Details | 
| Cool Earth | 
| Charitable organization that protects endangered rainforest and ecosystems and provides sustainable jobs for indigenous people. Includes details of how members of the public can participate. » Details | 
| Division on Earth and Life Studies | 
| Scope includes atmospheric sciences, climate, oceanography, solid-earth sciences, radioactive waste                                     management, polar research, environmental science and toxicology, natural disasters, and water science. » Details | 
| Earth Island Institute | 
| Earth Island Institute organizes and encourages activism around environmental issues and provides public education. Through fiscal sponsorship, it provides the administrative and organizational framework for more than 50 individual projects. » Details | 
| Earth Science Australia | 
| For people with an interest in the earth sciences. An introduction to the earth sciences in easy to read english. Most resources on-site. Since 1996. » Details | 
| Food & Trees for Africa | 
| Planting Trees and Food Gardens Since 1990, FTFA is The first and only South African social enterprise addressing sustainable development through climate change action, food security and greening, with a strong focus on environmental and global warming ed » Details | 
| IGBP | 
| Focused on acquiring basic scientific knowledge about the interactive processes of biology and chemistry of the earth as they relate to Global Change. » Details | 
| International Environmental Modelling and Software Society | 
| For private persons and organizations dealing with environmental modelling, software and related topics. Organization information, upcoming conferences, and links to related sites. » Details | 
| Living Earth | 
| An international organisation which encourages people to learn and work together to resolve the environmental issues which concern them. Their programmes address a wide range  of issues. » Details | 
| Zoological Society of Montreal | 
| Zoological Society of Montreal - A non profit organization incorporated in 1964. » Details |