If the temperate zones were where they are today--or even farther from the equator, the evidence has been largely buried or wiped out.
What we find today is mainly the remnants of equatorial civilizations, when those climates were more temperate and the remanants of the ice sheets were retreating, those remnants now are largely in desert or tropical climate regions because the climate changed when the ice sheets receeded.
Just my crackpot ideas...
If the temperate zones were where they are today--or even farther from the equator, the evidence has been largely buried or wiped out.
My God man, do you realize what you're saying? You're saying that the Earth, in its 4.5 billion year existence to date, might have warmed and cooled several times?
When we all now know, that its man rise that has caused the earth to warm. Unless of course you're right, then the enviro's will be able to point to Atlantis as being proof that man warmed up his climate before.... oh wait, we've had an ice age since then...
never mind...
We now return you to your regularly scheduled freep.
I think you are probably right but that would not fit with the conventional wisdom concerning human civilization. Sometimes today what scientists make up for in "intellect" they lack in imagination but eventually things will be dug up. I wouldn't be surprised to find that considerable "proof" of pre-ice age civilizations is not already in the coffers of many museums not that they have covered the proof up but that no one is really looking.