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Through our annual "Denver Digs Trees" program, we distribute and plant more than 1,000 public trees each spring. Many of these trees are planted in Denver's most underserved neighborhoods. Our volunteer "Community Forester" program trains citizens to act as stewards over Denver's urban forest. The Park People manages Denver's Gates Tennis Center -- one of the country's premier public tennis facilities. We also raise private funds for public park projects, including building renovation, landscape projects, and historic preservation of park structures.

In partnership with the City of New York and the community, the Prospect Park Alliance restores, develops, and operates Prospect Park for the enjoyment of all by caring for the natural environment, preserving historic design, and serving the public through facilities and programs. Prospect Park's 585 acres of meadows, waterfalls, forest, lakes, and athletic facilities comprise a masterwork of urban green space.

Our mission at the Alliance for the Great Lakes is to conserve and restore the world's largest freshwater resource using policy, education and local efforts, ensuring a healthy Great Lakes and clean water for generations of people and wildlife.

The Alliance to Save Energy promotes energy efficiency worldwide to achieve a healthier economy, a cleaner environment and greater energy security.

The mission of the Amazon Conservation Team (ACT) is to work in partnership with indigenous people to conserve biodiversity, improve human and ecosystem health, and strengthen traditional culture in tropical America.

The Anacostia Watershed Society's mission is to protect and restore the Anacostia River and its watershed communities by cleaning the water, recovering the shores, and honoring the heritage. Our ultimate goal is to make the Anacostia River swimmable and fishable, in compliance with the federal Clean Water Act, for all to enjoy.

Since 1876 we’ve made it our mission to protect the mountains, forests, waters, and trails you love in the Northeast and Mid-Atlantic regions. We envision a world where our natural resources are healthy, loved, and always protected, and where the outdoors occupies a place of central importance in every person’s life. We encourage you to experience, learn more, and appreciate the outdoors knowing that your participation supports the conservation and stewardship of the natural world around you.

Bald Head Island Conservancy fosters community based barrier island conservation, preservation and education, to live in harmony with nature.

BRING’s mission is helping people understand how the stuff we use shapes the planet we share.

California Trout's mission is to ensure healthy waters and resilient, wild fish for a better California. Our belief is that abundant wild fish indicate healthy waters and that healthy waters mean a better California. As such, we work to solve the state's complex resource issues while balancing the needs of wild fish and people

The Center for Creative Land Recycling (CCLR or "see clear") is a nonprofit organization founded on the belief that intelligent, innovative land use is the key to ensuring a healthy future for both our communities and our environment. Our mission is to enable communities to develop sustainably and equitably through land recycling---restoring underutilized, blighted sites to productive use.

The Center for Neighborhood Technology was founded to develop and test new sustainable economic development strategies and act as resource for local organizations working to improve their neighborhoods. Over the years it has assumed a number of different roles: spearheading research, analysis, and mapping; convening, staffing, and managing consortia and partnerships; developing and demonstrating new economic development tools and strategies; organizing policy campaigns; and acting as a funding intermediary. All of these roles have addressed, in different ways , how to take better advantage of the urban environment and its many undervalued assets--transportation networks, social networks, density, and natural infrastructure--in ways that deliver tangible benefits to households and communities.