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Re:The Unrealized Horrors of Population Explosion by schiffern on Monday June 01, 2015 @09:21PM (#9643270)
>make energy cheap enough and we can desalinate enough water to re-green the Sahara desert

So all we're waiting for is "power too cheap to meter", eh? :D

Planting trees can also green deserts[1], and does so without perpetual future energy inputs from desalination. This makes sense when you realize that plants cause rain.[2] The reverse is also true - cutting down forests creates deserts.

[1] https://www.youtube.com/watch?v=reCemnJmkzI

[2] http://www.nature.com/nature/journal/v496/n7445/full/nature1...

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