Questions About The Giza Plateau

What was the climate like in The Giza Plateau in Egypt 10,000 to 12,000 years ago compared to what it would be present day to 3000 years ago?

I'm doing research on the theory that the Sphinx was constructed (at least the body) as far back as 12,000 years ago, thousands of years longer than we thought. This would mean sophisticated civilizations would have existed far longer than we thought. According to the theory, the base of the Sphinx…
http://www.reddit.com/r/askscience/comments/ng6d0/what_was_the_climate_like_in_the_giza_plateau_in/

What is Sphinx?

(West Asian mythology) In Egyptian mythology the Sphinx was an image of the sun god, though it may have been no more than the peculiar shape of a limestone hillock on the Giza plateau that suggested the original notion of a recumbent lion w...
http://www.answers.com/topic/sphinx