| Facts | Causes | Effects on people | Efforts |
|---|---|---|---|
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What is dessertification?
A loss of vegetation
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How large is the Sahara Desert?
3.629 million sq miles
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How long did it take for the Sahara Desert to spread 250,000 sq miles?
50 years
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What are two ways people cause dessertification?
Allow livestock to overgaze savanna and by cutting down trees for firewood.
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