Featured Quote

  • “In the end it’s not about finding policies that work, it’s about forging consensus and fighting cynicism. Can we do this?”

    -Barack Obama


  • Planet 3 Redux

    Between 2011 and 2016, Planet 3 has had about 300 articles by about 2 dozen contributors. We are in the process of redesigning the enterprise, taking account of lessons learned.

    If you’d like more info or would like to help, please contact mt@planet3.org .

    A “Best of Planet 3” volume is in preparation. [more]

Featured Article

Who Decides What is True?


There’s no Supreme Court of Truth, no supreme authority that affixes an imprimatur of “scientific fact”.

Yet we believe many things to be true which we could not have known about without science. It’s obvious that science can draw conclusions which are effectively certain, but it’s less than obvious how this happens. How does speculation turn into hypothesis, then established theory, then fact? It’s a social process more than a formal one. [more]

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Beyond Planet Three

Conversations about worthwhile sustainability readings from elsewhere on the web

Beyond Planet Three Archives