1. Five Reasons for the Collapse of a Civilization[1] [1] Collapse – How Societies Choose to Fail or Succeed. Jared Diamond. Penguin Books 2005.[1]

2. Five Reasons for the Collapse of a Civilization Damage that people inadvertently inflict on their environment. –Environmental collapse

3. Five Reasons for the Collapse of a Civilization Climate Change –Resource depletion

4. Five Reasons for the Collapse of a Civilization Hostile Neighbors –Intermittent or persistent hostilities

5. Five Reasons for the Collapse of a Civilization Decreased support by Friendly Neighbors –Changing of trading partners

6. Five Reasons for the Collapse of a Civilization Society’s response to its problems –Reponses depend on its political, economic and social institutions