WHAT'S HAPPENING

  • Evangeline Lilly explains in the importance of stopping the Transatlantic Trade and Investment Partnership (TTIP), for the sake of our climate.
  • "Captain Fantastic" star Viggo Mortensen joins with the Sierra Club to celebrate the National Park Service Centennial and looks forward to the next 100 years of conservation and nearby nature.
  • 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!
  • Looking for a getaway? We've got 300+ ideas for you.
  • Sign up with Arcadia Power today and they'll send the Sierra Club a donation -- plus you'll receive 4 free LEDs.
  • GO LOCAL

    See what we are doing in:
     
     
     
     

    ACT NOW

     

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

    We are the nation's largest and most influential grassroots environmental organization.

    MOST POPULAR CONTENT

    President Donald Trump would be the only world leader on the planet who doesn't believe that climate change is real.
    Last week the Sierra Club’s Ready for 100 Campaign, Renewable Cities, ICLEI USA, and the San Francisco Department of the Environment...

    NOW IN SIERRA MAGAZINE

    Bears Ears
    A coalition of five Native American tribes is pushing President Barack Obama to create a new national monument in Utah as opposition mounts

    FROM OUR BLOGS

    The climate movement has achieved critical wins recently. Yet, the Trans-Pacific Partnership (TPP), if approved by Congress, could...
    Michael Brune
    President Donald Trump would be the only world leader on the planet who doesn't believe that climate change is real.

    FEATURED OUTINGS

    July 29, 2016 to August 6, 2016
    Find inspiration in the many splendors of Dusy Basin, LeConte Canyon, Evolution Basin, and Piute Canyon on this 57-mile journey through...
    July 29, 2016 to August 6, 2016
    Discover America's least visited park while assisting with trail maintenance. We'll work and hike among wolves, moose, and loons...
    Connect with the Sierra Club