In our lifetime we have seen some societies collapse including Somalia and Rwanda.
Jared Diamond gives us five things to look for to avoid such collapses:
1) look for human impact on the environment 2) climate change 3) relations with neighbouring friendly societies-do they pull away or end trade/negotiations? 4) relations with hostile societies-do they block resources? 5) political/economic/social/cultural factors in the society that will make it more or less likely to perceive and solve it's environmental problems