LeBrok
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And it is also problem of slow economic growth. Look at Germany, they have same population numbers as Egypt, but nobody lives in poverty.Back in the real world, Subsaharan Africa will remain a sink of poverty till the problem of high population growth is tackled seriously.
I don't know, it didn't happen yet. It might be dealt like in oil case. Government sells/leases land to privet companies which grow food. This create need for fresh water, giving other companies incentive to build water desalination plants, and to sell water to agriculture businesses.Which organisation is going to supervise and organise the transformation of the Sahara?
Some of this model already exists in California. California is mostly a desert, but it is number one in food production in US. All grown with irrigated water from rivers and lakes. If we switch water supply from river to desalinated sea water, we can introduce this model to Sahara or any desert place which doesn't have rivers and lakes.
http://seekingalpha.com/article/700111-energy-recovery-a-long-story
They coming in fast these days, and it is just the beginning. Expect totally green sahara in 100 years.