ACT NOW

Be a member of the country's largest, most effective grassroots movement.

JoinRenew

GO LOCAL

See what we are doing in:
 
 
Find activities and events near you
 

WHAT'S HAPPENING

  • I Stand With Standing Rock
    Join us by calling the White House to urge President Obama to investigate potential rights violations and reject this pipeline once and for all!: 1-303-816-3559
  • Time to Stop a Bad Idea
    The Sierra Club is proud to support Native American allies who are trying to protect their water and ancestral lands from the dangerous Dakota Access oil pipeline.
  • The Top 20
    Sierra magazine's annual list. These are the colleges working hardest to protect the planet in 2016.
  • Is Toxic Trade in Your Backyard?
    Our interactive map shows more than 400 of these polluting projects across 48 states.
  • Help Celebrate Our National Parks
    Looking for a National Park Service 100th anniversary T-shirt, national park notecards, a classic Sierra Club stainless steel camping cup, or other gear? We've got it!
  • Sierra Club Outings -- Book Your Trip Today!
    Looking for a getaway? We've got 300+ ideas for you.

    • MOST POPULAR CONTENT

    Photos from the Front Lines of the Dakota Access Pipeline Resistance
    Water protectors continue their defense in the face of police repression
    North Fork Quinault River Trail
    Winter Hikes in Olympic National Park
    A Sierra Club Outings leader suggests ways to find your own Square Inch of Silence
    See more of our most popular stories

    NOW IN SIERRA MAGAZINE

    Four Astronomical Highlights to Watch in November
    A Supermoon, some meteor showers, and a bright canopy of stars and planets wow viewers this month
    Ballot box
    Vote for Biodiversity
    New research shows local ballot initiatives to preserve open land are great at preserving species, too
    See more content from SIERRA Magazine

    FROM OUR BLOGS

    Compass:
    Anti-Poverty Organizations Say More Coal Will Cause More Poverty
    A new position paper released this week by 12 organizations -- including the Catholic Agency for Overseas Development, Christian Aid, the...
    Michael Brune
    Coming Clean:
    Finding Common Ground
    Climate Parents was founded four years ago on the simple premise that if you care about children then you also care about their future.
    See more from our blogs

    FEATURED OUTINGS

    Machu Picchu Eco-Lodge Trek, Peru (16890A)
    November 1, 2016 to November 11, 2016
    Forgo the crowded Inca Trail and strike out instead along a less traveled route through the Cordillera Vilcabamba. After five days of...
    Cuba by Bicycle: Culture and Conservation at a Crossroads (16755A)
    November 3, 2016 to November 13, 2016
    Immerse yourself in a vibrant culture and come face to face with locals on this bicycling tour of Cuba's cities, countryside, and...
    Find more outdoor adventures
    Connect with the Sierra Club