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Old Feb 23, '12, 9:51 pm
Bobby Jim Bobby Jim is offline
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Join Date: June 11, 2004
Posts: 1,900
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Default Re: Sahara Forest Project, desalinating ocean water to turn deserts green.

It's pretty clever - conventionally, desalinating seawater takes a huge input of energy - essentially trading oil for fresh water. This is basically solar powered, and not photovoltaic, but just using heat from the sun. If comparing to the conventional approach, you probably get a lot less fresh water per acre of facility this way, so it's not going to be utility-scale water production, but if it's enough water to grow crops on-site then I suppose it makes sense.