WHAT'S HAPPENING

  • President Barack Obama just signed a proclamation designating the San Gabriel Mountains our newest national monument.
  • Who needs the agricultural-industrial complex when you can gather food near home? The first way humans got food is still free -- and green.
  • From Sydney to Santa Fe, Rio de Janeiro to the Rio Grande, everyday citizens turned out to tell world leaders that the time for climate action is now.
  • The expansion of protection increases the original size of the monument by six times.
  • GO LOCAL

    See what we are doing in:
     
     
     
     

    ACT NOW

    Thank President Obama for protecting the San Gabriel Mountains!
    Thank President Obama for designating the San Gabriel Mountains as a national monument -- protecting it for future generations to enjoy!
    Join 174 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

    partial solar eclipse
    The moon will block out a section of the sun on October 23.
    Ask Mr. Green
    Find out if you're spending too much money on hot showers.

    NOW IN SIERRA MAGAZINE

    Impossible Foods releases a vegan burger that sizzles and tastes just like a meat burger
    Attention vegans and vegetarians: You can eat this.
    Your feelings about composite wood may turn on how much you like formaldehyde.
    Two years ago, news broke about a hurricane called Sandy that might be headed toward the East Coast. Ultimately, Sandy would leave more...

    Featured Outings

    November 1, 2014 to November 8, 2014
    Join other adventuresome women on a weeklong backpack through the Grand Canyon, rightfully deemed one of the world's natural wonders. We...
    February 5, 2015 to February 17, 2015
    No African wildlife area surpasses Tanzania in its striking scenery and the sheer number of animals to be seen. Accompanied by Tanzanian...
    Connect with the Sierra Club