Ray Audette wrote:
  the inefficiency of animals is not a major concern
> since they represent the only way these plants can be converted to
> human food. As the human population of the world increases, it is
> likely that we will be forced to depend more and more on ruminant
> animals to meet the increased demands for food.
> 
> [from University of Oklahoma]
> 
> From an ecological point of view, Paleo is the only way to go!
> 

Good news - it is already happening: http://www.hillsfoods.com/article1.html

The usual government stupidity is apparent, and of course the prices 
prohibit feeding the world, but it's a start.

William