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4- Caatinga to Rio
> Rural to Urban migration: patterns, reasons and impacts.

Caatinga: Dry Zone in NE Brazil, South America.
Push Factors:
- Climate: Dry, unreliable rainfall, every few years there is a drought (crops die).
- Farming: failing harvests = food shortages.
- Water: Only supply is dirty…

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- Groups of people encouraged to build own homes.
- Local authority provides breeze-blocks and roofing tiles, people provide labour.
+ Money saved used to provide electricity, clean water, tarred roads.
+ Creates a community spirit.
- Local authorities rarely keep up pace with newcomers.

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