Sorry, living in Cow Hampshire, I know about soil retention.
>>
Yeah, but--
Cow Hampshire has the hydrology and climate that would let hay work.
Plus, it's not surrounded by more desert. What's your yearly rainfall?
There is no hay in most deserts; you'd have to truck *it* in too. Not
what whas originally specified. :) The in-situ studies in Israel and
Egypt indicate that it's impractical with available tech.
Now, if you moved the sand to US Midwest first... :) But I seem to
recall that desert sand is a different *shape*, too, which might or
might not complicate matters.
Some people have gotten rsults just *pavig* the desert and poking
holes in it. You plant things that can live in sandy soil, and the
asphalt cover reduces moisture loss--you trickle-irrigate and voila.
Of course, Chris is probably talking about "magiucally" importing
gigatonnes of waste to the entire desert all at once....
Mike