• President Barack Obama just signed a proclamation designating the San Gabriel Mountains our newest national monument.
  • It has been over 40 years since the Clean Air Act was created, so why is our air is still unsafe to breathe?
  • A new report out from the world's climate experts makes it undeniably clear that we still have the chance.
  • On Veterans Day -- and for several days leading up to and after Veterans Day -- we celebrate those women and men who have served their country in uniform.

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    Thank President Obama for historic climate action!
    President Obama and President Xi Jinping of China announced a historic joint plan to curb climate pollution, setting the stage for an international agreement on climate change next year. Send President Obama a message thanking him for acting on climate!
    Join 11141 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.


    Just say no to receipts in fast food restaurants--especially if you've used a hand sanitizer--to avoid absorbing or ingesting high amounts...
    Let's imagine that we feed Fido a pound of prime rib every day . . .


    Ladybugs mating
    Sierra sat down with Jules Howard, author of new book Sex on Earth, for a totally serious conversation about animal sex.
    Let's imagine that we feed Fido a pound of prime rib every day . . .
    What a difference a week makes. This morning we awoke to the news that President Obama and Secretary of State Kerry have negotiated a...

    Featured Outings

    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...
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    Escape the chill of winter on Florida's sun-drenched islands, and join us for sizzling sunsets and strolls on miles of white sand...
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