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The Access Fund is the national organization that keeps climbing areas open and conserves the climbing environment.

The American Battlefield Trust preserves America’s hallowed battlegrounds and educates the public about what happened there and why it matters. As the nation's leading heritage land preservation organization, we have saved more than 57,000 acres of battlefield land in 24 states to date — thanks to the support of our members & partners.

Our mission is to be the leading source and teacher of wilderness skills and leadership that serve people and the environment. Our community—staff, students, trustees, and alumni—shares a commitment to wilderness, education, leadership, safety, community, and excellence.

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.

Audubon Nature Institute Foundation is a support organization whose mission is to manage and increase the endowment that supports the facilities, programs, and other activities managed by Audubon Nature Institute.

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.

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 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.

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.

from the website: "Tackling climate change; conserving living things; ensuring healthy, just human communities—or creating any necessary change—is not possible, unless people value the changes needed to let the living world survive, and humanity thrive. That is the unique work of the Safina Center."

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.

VIDA is a non-profit organization providing dual service to both Latin America and Northern California by collecting surplus medical supplies and equipment from health institutions, diverting them from landfills, and shipping them to Latin American hospitals and clinics that rely on such donations for the provision of basic health care.