The Sierra Club is the most enduring and influential grassroots environmental organization in the United States. We amplify the power of our 3.5+ million members and supporters to defend everyone's right to a healthy world.

Help the Sierra Club keep fighting for Earth's natural resources.

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 solutionswhich is why the Sierra Club is bringing people together to build the most powerful and effective environmental movement the world has ever seen.

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.