Sierra Club is the largest and most influential grassroots environmental organization in the country. For more than 130 years, we’ve been working to promote clean energy, safeguard the health of our communities, protect wildlife, and preserve our remaining wild places through grassroots activism, public education, lobbying, and legal action.
Clean energy technologies are driving a new era of job creation and American prosperity that works for everyone.
We have a long legacy of protecting America’s public lands, the waters that flow through them, and the wildlife that depends on both.
Local chapters are central to our grassroots mission and are the main drivers of Sierra Club’s values, priorities, and vision for the future.
Join Our Movement
We can stop the climate crisis. But we must act now, together, to save our home, our world. The Sierra Club has people in 50 states across the country ready to mobilize. Will you join us?
Get involved in
Our local chapters are the heart and soul of the Sierra Club. Explore what’s happening in your area and how you can join in.
Learn MoreSign up for the latest environmental news and actions.
Get Outside
The Sierra Club Outings program provides environmentally friendly outdoor adventures—from Tahoe to Tibet—for people of all ages, abilities, and interests. Find a trip that feels like it was designed for you today.
Take A Trip
Sierra Magazine
Sierra is a national print and digital magazine publishing award-winning journalism. It combines features on green living and outdoor adventure with reporting about threats to the environment, conveying the ideals at the heart of the Sierra Club’s mission. Sierra Club members enjoy a free subscription to Sierra.
See our 2025 Winter Issue