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      July 31, 2008The Sciences

      Picking a Green Candidate

      What are the key environmental issues facing the next president of the U.S.?
      December 1, 2014The Sciences

      Why Do People Believe in Conspiracy Theories?

      Who believes in conspiracy theories—and why
      November 4, 2015Sustainability

      Why Keystone XL Is Dead

      Once seeking a fast approval, TransCanada wants to pause the pipeline’s review 
      August 1, 1983The Sciences

      Books, August 1983

      Offshore oil adventures, biblical plants, the geometry of behavior, soccer madness
      December 9, 2008Sustainability

      The Dirty Side of Clean Coal

      As long as mountaintop removal mining continues coal cannot be clean, even if the pollution from burning it can be minimized
      November 1, 2013The Sciences

      Readers Respond to “Do CT Scans Cause Cancer?”

      Letters to the editor from the November 2013 issue of Scientific American.
      March 1, 2000Space

      Staying Sane in Space

      "Is the right stuff enough?" asks staff writer Sarah Simpson
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