• The biggest climate march in history. Learn more and sign up now!
  • The fossil fuel industry is trying to snuff out Texas's wind energy boom. It didn't reckon with Greg Wortham.
  • When you go backpacking, pick a route where you're allowed to bring your best bud.
  • "My children and I will breathe easier knowing that cleaner air is coming," said Vernon Muhammad, a father and resident of North Omaha.
  • A journey through the winding rivers in one of our nation’s greatest wilderness icons.
  • Go Local

    July 30, 2014
    Jul 30, Wed: Hike – Shaw Nature Reserve to see the wetlands and prairie...
    July 30, 2014
    Discuss Committee business in a friendly environment. Light supper provided....

    Act Now

    Support strong climate action
    The EPA is ready to crack down on runaway climate pollution. Show your support for strong climate action!
    Join 50793 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.


    The Sierra Club's Missouri Beyond Coal campaign achieved a prized goal this month when Ameren Energy announced that it would phase out its...


    World's dumbest denier?
    When asked for evidence that the earth is getting colder, the "Palin of the South" flees the room.
    August Stargazing
    You won't want to miss August's astronomy highlights.


    Hey Mr. Green -- Find out the answer
    Hey Mr. Green,It seems hypocritical for the Sierra Club to voice concern about the environment while promoting air travel to distant...
    Last year, about 900,000 people marveled at the majestic old-growth redwoods of Muir Woods. But if President Theodore Roosevelt had not...

    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