From: jtem01@gmail.com   
      
    reader wrote:   
      
   > Ancient complex states were based on agriculture.  If a shift in climate   
   > occurs that can be in peril.   
      
   You mean agriculture is vulnerable to the effects of large scale   
   volcanic activity. This has never been a secret.   
      
   All the record droughts in European history align with volcanic   
   activity.   
      
   It's not "Climate" change in that the effects are short lived, even   
   in the worst of cases lasting for little more than a thousand years,   
   which is nothing in geologic time...   
      
   Effects also tend to be more wide scale at first, slowly becoming   
   more localized within the northern hemisphere. The Younger Dryas   
   cooling, for example, re-grew the glaciers in North America while   
   the southern hemisphere was warming...   
      
   These things are not symmetrical. They do NOT happen evenly   
   across the globe.   
      
      
      
      
      
      
   -- --   
      
   https://jtem.tumblr.com/post/628210839782096896   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)