[ExI] Greening the Sahara

[Dan]

--- On Mon, 7/20/09, Mirco Romanato <painlord2k at libero.it> wrote:
> spike ha scritto:
>> Pump sea water up into large shallow reservoirs on the
>> western edge of the
>> Sahara.  If you get tricky the pumping can be
>> done with tidal action, so it
>> is passive.  All that heat and dry air would
>> evaporate the water, raising
>> the humidity and lowering the temperature. 
>> Rainfall would be increased
>> further east, downwind of the reservoirs.
> 
> How do you manage the salt entering the water wells around
> the reservoirs?
> There is not much water underground in the Sahara, so if
> you pump salt
> water, this will fill any available empty space.

I think Spike's proposal was only aimed at increasing the rainfall "further[sic] east, downwind of the reservoirs" and ignoring local effects around the reservoirs.

Regards,

Dan