Excercise 11b:
Watch the first 5 minutes of Jared Diamond’s TED talk. In this talk, the American geographer explains five common reasons why societies collapse. Which five points does he mention?
    -Human impact on the environment that destroys the resource base
    -Climate change – warmer, colder, wetter, drier
  - Relations with neighbouring tribes
    -Relations with hostile societies
    -Perceptions of environmental problems