About the Sierra Club

The Sierra Club is the most enduring and influential grassroots environmental organization in the United States. We amplify the power of our millions of members and supporters to defend everyone’s right to a healthy world.

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Mission Statement

To explore, enjoy, and protect the wild places of the earth;
To practice and promote the responsible use of the earth's ecosystems and resources;
To educate and enlist humanity to protect and restore the quality of the natural and human environment; and to use all lawful means to carry out these objectives.

+1.5º

before dire climate disruption

11M

Americans living with polluted air

The Challenge

Today, there are serious challenges ahead: a warming climate, unprecedented levels of pollution, and powerful special interests undermining basic protections. There’s no time to waste in coming together for new solutions—which is why the Sierra Club is bringing people together to build the most powerful and effective environmental movement the world has ever seen.

Sierra Club's Statement on Reparations

The Sierra Club firmly supports reparations for Black people and believes it is impossible to create a healthy, safe, and sustainable future for all without acknowledging and materially addressing the past and present economic, cultural, psychological and spiritual impacts of racism.

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4,500

rallies and events

3M+

petition signatures

How We Do It

We know actions speak louder than words. That’s why we’ve built a national community of volunteers, advocates, and grassroots activists who show up when and where it counts. Our supporters have the tools and resources to make themselves heard in nearly every district in every state across the country. From securing protection for 439 parks and monuments, to winning passage of the Clean Air and Endangered Species Acts, to putting over 281 coal plants on the path to replacement with clean energy, to securing the right of every kid in America to visit a national park, we have an unmatched record of success and impact.

#KeepItInTheGround DC Rally, May 2016

A Diverse Coalition

We work with other partner organizations, nonprofits, and campaigns to build a diverse, inclusive movement that represents today’s American public. We know that environmental issues can’t be separated from social justice—because we all breathe the same air and share the same land. The Sierra Club also works with and supports companies that know strong values are a part of smart business.

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Over 7,500 trained volunteers lead Sierra Club outings across the country and abroad each year.

Enjoying the Outdoors

And we help people enjoy the earth we’re protecting. Each year, Sierra Club volunteers lead over 15,000 trips annually, from extended trips across the world to afternoon hikes not far from home.

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Become a Member

There’s a place for you here. Join millions like you fighting for change.

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John Muir at Kings River, 1902

Our Roots

The Sierra Club's first members, including John Muir, were originally focused on the conservation of California's Sierra Nevada mountains. Since then, the Sierra Club has evolved into an organization that works to advance climate solutions and ensure everyone has access to clean air, clean water, and a healthy environment.

Explore Our History

Our Leadership

Elected Directors

Read about our all-volunteer board of directors.

Acting Executive Director

Read more from Acting Executive Director Dan Chu.

Officers and Directors

Read more about our officers and directors.

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341

coal plants retired

439

parks & monuments established

15K

outings taken per year

3.8M

members & supporters

About the Sierra Club