[ExI] Greening the Sahara
Henrique Moraes Machado
cetico.iconoclasta at gmail.com
Fri Jul 17 22:21:33 UTC 2009
Dan> Any ideas on how to do this?
> An idea I had was to cover strategic swaths of it with dark material,
> thereby causing its daytime temperature to rise causing the air to rise
> faster pulling in more moist air from the costs. Once rainfall is higher,
> it seems the greening would take care of itself.
The Sahara is a sand desert and it´s surface is highly mobile. The wind
blows the sand and the dunes move a lot. I think that any dark material
covering the sand would be quickly covered back with sand by the blowing
Here´s a thought. And this can be a complete nonsensical idea (almost
certainly is). I don´t know how deep is the sand layer and what lies
beneath, but what about digging big potholes (too bad we can´t use
thermonuclear blasts to do this, because of the residual radiation) and fill
them with seawater. These potholes evenly distributed across the desert
could provide a lot of water for evaporation.
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