While listening to TWiT this week I heard about the work of Arnold Toynbee called A Study of History which is apparently a massive overview of world history. I am hoping to dig into these books in the near future. Read on for links to the books on Amazon...
Part of Toynbee's thesis resting on the ideas that a great civilization's rise or fall hinges on the climate and suicide rates in that civilization. While I fundamentally disagree that a civilization is capable of shaping its own destiny by it's own bootstraps, this sounds like an interesting work of writing to plow through in the coming months.