...and here is the other:
Diamonds Five Point Framework:
Environmental Damage
Climate Change
Hostile Neighbors
Friendly Neighbors
The Society's Response to Environmental Damage (or any other problems)
Of these, Diamond states that the first four are not always a factor to the society, the last always is. Always. Strong assertion. Lets see what he has to offer to back this up.
Environmental Damage:
        Imprudence on behalf of the society
Fragility of Environment (forests, soil, population of game/abundance of food sources)
Climate Change:
        Ice Ages
Overly dry/wet fluctuations
Output of the sun's heat
Volcanic eruption
(present)Man made causes more prevalent
Hostile Neighbors
        Conflict & Aggression
        Ecological or other collapse masquerades as military defeat (Example of Rome
and the Barbarians)
Friendly Neighbors
        Decreased support from
        Defeat of by an aggressor
        Collapse of
The Society's Response to Environmental (or other) Damage
        Response depends on political, economic, and social institutions and on cultural
values
The one thing of which I am positive is that there is much of which to be negative - Mr. P.
The pain in hell has two sides. The kind you can touch with your hand; the kind you can feel in your heart...Scorsese's "Mean Streets"
I came to kick ass and chew Bubble Gum...and I am all out of Bubble Gum - They Live, Roddy Piper