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  • Jason Mark

    Jason Mark was the editor in chief of Sierra from 2015 to 2024. He is the author of Satellites in the High Country: Searching for the Wild in the Age of Man, and he's currently working on a new book about shifting baseline syndrome. Find him on Bluesky.
     

    Tell It to the Judge, Big Oil

    Carbon polluters acknowledge climate basics but duck responsibility
    By Jason Mark March 22, 2018
    In this story: climate change, science, clean energy, dirty energy, activism
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    Public Lands for Whom?

    Zinke scapegoats fourth graders, grandmas; delivers giveaways to oil companies
    By Jason Mark March 19, 2018
    In this story: oil, national parks
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    Another Legal Win For 21 Young People Suing Over Climate Change

    Appeals court allows landmark climate change case to move forward
    By Jason Mark March 7, 2018
    In this story: climate change
    The Our Children's Trust plaintiffs and allies at the federal courthouse in Eugene, Oregon.

    Are Your Outdoor Recreation Brands Supporting the NRA?

    Vista Outdoor boycott grows as REI and Mountain Equipment stop ordering products
    By Jason Mark March 2, 2018
    In this story: biking, buyers' guide
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    Songbirds Are a Miracle of Evolution Hiding in Plain Sight

    Bruce M. Beehler examines the riddle of migration in "North on the Wing"
    By Jason Mark March 7, 2018
    In this story: books, birds
    North on the Wing: Travels With the Songbird Migration of Spring

    The Sierra Club Is Committed to Equity in the Outdoors

    Everybody deserves the opportunity to feel at home in the woods
    By Jason Mark March 1, 2018
    In this story: inspiring connections outdoors
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    Puerto Ricans Still Lack Power Months After Hurricane Maria

    One businesswoman’s story of trying to muddle through the continuing crisis
    By Jason Mark January 18, 2018
    In this story: climate change
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    Top 10 Environmental Stories of 2017

    The bad and the worse . . . plus a bit of good
    By Jason Mark December 26, 2017
    In this story: climate change
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    Federal Appeals Court Hears Youth Climate Justice Suit

    Plaintiff’s attorney says case is this generation’s Brown v Board of Education
    By Jason Mark December 11, 2017
    In this story: climate change
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    Secretary Zinke Calls for Reducing Two More National Monuments

    Recommendations could lead to more grazing and logging on public lands
    By Jason Mark December 5, 2017
    In this story: monuments
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