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. 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.