Summary
LETTER FROM EAST AFRICA
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Extract
How to stop desertification.
Perhaps the greatest pan-African environmental challenge, and one with enormous political and economic implications, is how to arrest and reverse the southward advance of the Sahara desert. A few projects are trying to do just that.
[ILLUSTRATION OMITTED] There is room for debate as to the speed at which the Sahara desert is expanding - from the conservative 600m a year, to the extravagant claim on Wikipedia that it is more like 40km a year. But there is...See the full content of this document
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