WHAT'S HAPPENING

  • The biggest climate march in history. Learn more and sign up now!
  • Find out if your school make our 2014 Cool Schools list.
  • At the intersection of creativity and advocacy, the art world is poised to make an environmental statement.
  • The perfect excuse to have a beer: Eco-brews are helping the planet, pint by pint.
  • A journey through the winding rivers in one of our nation’s greatest wilderness icons.
  • GO LOCAL

    See what we are doing in:
     
     
     
     

    ACT NOW

    Speak out for a strong Clean Power Plan
    The EPA's Clean Power Plan is a big step in the fight against runaway climate pollution. Raise your voice to make it even stronger!
    Join 46750 others and Take Action

    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

    cool schools full ranking
    Our Cool Schools 2014 scorecard
    Repurpose: Cereal box to notebook
    Turn a cereal box and scratch paper into a bound notebook.

    NOW IN SIERRA MAGAZINE

    The carcass of the abandoned Moran Municipal Generation Station, on Burlington's lakefront, inspired Tad Cooke (left) and Erick Crockenberg. Their charge: Turn the cavernous interior into an "innovation space."
    Two college students are turning a coal-era relic into a cultural center.
    Samuel Wohns, Cambridge, Mass.; co-coordinator, Responsible Investment at Harvard Coalition
    Sam Wohns tries to stop Harvard from funding eco-negative companies.

    FROM OUR BLOGS

    You hear a lot from us about what our programming is doing here at Sierra Club Outdors, so today, we figured we'd let you know about what...
    Years ago, the conventional wisdom was that going up against the coal industry was a losing proposition. After all, there was a reason the...

    Featured Outings

    September 14, 2014 to September 25, 2014
    Savor "the good life" while touring Tuscany's fabled towns and countryside. We'll explore Florence, Siena, Pisa, San Gimignano, Volterra,...
    September 28, 2014 to October 4, 2014
    Hike through history on the scenic trails of the picturesque Catskills as trees begin to turn brilliant shades of gold and red. Hike to New...
    Connect with the Sierra Club