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Cause Area

  • Advocacy & Human Rights
  • Animals
  • Community
  • Education & Literacy
  • Environment


PO Box 270595West Hartford, CT 06127 United States

Organization Information

Mission Statement

Our goals are to: Solve the climate crisis primarily through a successful transition to a resource-efficient clean energy economy that better serves people and nature; Secure protections for public lands and waters, promote healthy ecosystems and communities, and fight for clean air and water; Expand opportunities for more people to explore, enjoy, and protect the planet by supporting programs and policies that reach across economic, cultural, and community lines to get people outdoors; and Build a diverse, inclusive environmental movement that reflects and represents today’s American public, and prioritizes important connections between environmental health and social justice.


The Sierra Club is the nation's largest and oldest grassroots organization with approximately 2.7 million members and supporters. We fight for clean air, clean water, and the preservation of the world's natural and wild spaces.

Founded by John Muir, one of the most influential transcendentalists of the 18th and 19th centuries, the Sierra Club began as a small in size organization advocating for the preservation of the Sierra Nevada region in California. In less than a decade they began to advocate for areas outside of California.

In 1950 The Atlantic Chapter became the first Club chapter outside of California. Over the next two decades, chapters were created in each state.


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