From: jtem01@gmail.com   
      
    reader wrote:   
      
   > Obviously you did not read past the headline.   
   >   
   > The factor in question was the careful use of 'pastoralism' with   
   > domesticated animals to retard the desert.   
      
   Again, you are comparing the Holocene to the Holocene   
   and then pretending that there's a difference.   
      
   The only way to judge if humans altered the time table   
   to the formation of the Sahara would be to look to the   
   previous interglacial and try to measure the speed of   
   such changes.   
      
   What you're doing is stupid, all the more so because this   
   has already been pointed out to you.   
      
   You are repeating the exact same stupid mistake.   
      
      
      
      
      
      
   -- --   
      
   http://jtem.tumblr.com/post/178678761698   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)