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20 to 50 comments:

  1. A conversation with Jeffrey Sachs
    A conversation with Jeffrey Sachs

    with Jeffrey Sachs on Apr 16, 2008

    Duration
    32 min
    Comments
    27 comments
    Rating
    * * * *
  2. Jeffrey Sachs, the Earth Institute, Columbia University
    Jeffrey Sachs, the Earth Institute, Columbia University

    with Jeffrey Sachs on Oct 5, 2011

    Duration
    31 min
    Comments
    21 comments
    Rating
    * * * *

Less than 20 comments:

  1. Al Gore, Author, "The Future"
    Al Gore, Author, "The Future"

    with Al Gore on Jan 31, 2013

    Duration
    60 min
    Comments
    17 comments
    Rating
    * * * *
  2. A conversation with author Edward O. Wilson
    A conversation with author Edward O. Wilson

    with Edward O. Wilson on Dec 12, 2006

    Duration
    18 min
    Comments
    2 comments
    Rating
    * * * *
  3. A conversation with Al and Tipper Gore
    A conversation with Al and Tipper Gore

    with Tipper Gore and Al Gore on Nov 19, 2002

    Duration
    53 min
    Comments
    2 comments
    Rating
    * * * *

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