To: SunkenCiv
IMO most if not all empires fell and migrations out of Africa were due to climate changes that exacerbated conditions such as lack of plant food and game; increased pestilence and disease.
2 posted on
12/05/2008 6:48:40 PM PST by
boxer21
To: boxer21
"....due to climate changes....."
Salting the fields and cutting all the trees didn't help (CO2 reduction).
3 posted on
12/05/2008 6:58:15 PM PST by
Paladin2
(No, pundits strongly believe that the proper solution is more dilution.)
To: boxer21
The Black Plague did a lot to reduce productive populations also
14 posted on
12/06/2008 4:19:29 AM PST by
Jimmy Valentine
(DemocRATS - when they speak, they lie; when they are silent, they are stealing the American Dream)
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