Agreed - although I don't think it will take nearly that long for wars over food and water. Thanks for your reading reco, I'll trade you 'Full Planet, Empty Plates' - http://www.amazon.com/Full-Planet-Empty-Plates-Geopolitics/d...

I don't have any doubt of humanity's survival as a species - even a total catastrophe, say a 75% reduction in food production, isn't going to wipe us out. The survival of our current civilization, on the other hand...