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TreePeople's mission is to inspire, engage and support people to take personal responsibility for the urban environment, making it safe, healthy, fun and sustainable and to share the results as a model for the world.

Inspiring Passion for the Natural World through emphasizing Conservation, Education, Scientific Study and Recreation in all aspects of the Birmingham Zoo's exhibits, programs, facilities and activities.

The Islesboro Islands Trust mission is (1) to enhance the quality of residents' lives through the preservation of open space, (2) to educate all residents as to the value of the islands' natural ecosystems, and (3) to act as an environmental advocate on behalf of Islesboro and the surrounding Penobscot Bay region.

Acterra's mission is to bring people together to create local solutions for a healthy planet.

The mission of the Adirondack Council is to ensure the ecological integrity and wild character of the Adirondack Park. We envision an Adirondack Park composed of large core wilderness areas, connected to working farms and forests, and augmented by vibrant communities, all within a diverse mosaic of biologically intact landscapes.

The Adirondack Mountain Club (ADK) is dedicated to the protection and responsible recreational use of the New York State Forest Preserve, and other Parks, wild lands and waters vital to our members and chapters. The Club, founded in 1922, is a member-directed organization committed to public service and stewardshiadvocacy, environmental education and natural resource conservation. ADK encourages the involvement of all people in its mission and activities; its goal is to be a community that is comfortable, inviting, and accessible.

The Alaska Conservation Foundation protects Alaska’s natural environment and the diverse cultures and ways of life it sustains. We do this by promoting conservation philanthropy and by strategically directing resources to conservation leaders, organizations, and initiatives.

The American Forest Foundation works on-the-ground with families, teachers, and elected officials to promote stewardship and protect our nation's forest heritage.

American Rivers, founded in 1973, is dedicated to protecting and restoring healthy natural rivers and the variety of life they sustain, for the benefit of people, fish, and wildlife.

To conserve and restore America's whitewater resources and to enhance opportunities to enjoy them safely.American Whitewater focuses on project within the United States.

To promote corporate social and environmental responsibility through shareholder advocacy, grant making and innovative legal strategies.

Marine Conservation Institute is a leader in the global movement to protect and recover the integrity of vast ocean areas. We use the latest science to identify important marine ecosystems around the world, and then advocate for their protection, for us and future generations.