Thoreau Center

This green building/healthy environment organization has a beautiful website and a great mission.

Thoreau Center: "The Thoreau Center for Sustainability is a Multi-tenant Nonprofit Center located in the historic Presidio, a national park in San Francisco, CA. It serves as a living model of the Presidio's original vision - a global center dedicated to addressing the world's most critical environmental, cultural, and social challenges. The Center is named after the American writer and naturalist, Henry David Thoreau because of his belief in the importance of democracy in society and his advocacy for living in harmony with nature. It is designed to incorporate both sustainable 'green' building principles as well as historic preservation."