Haven't you seen anything lately on the newest "Snowball Earth" theory? The entire Earth froze over from pole to pole and it happened at least twice. (Africa included)
There is credible archeology to support it as well.(you'll find it on discovery .com/science channel. Super good documentary aired on this theory as well.
41 posted on 02/14/2006 9:33:48 PM PST by PSYCHO-FREEP
(M.S.M. Creed: "Truth has no substance until we give it permission! ")