Quote:
Originally Posted by Davewiseman
Sure, the earth is warming but how much man-kind is helping, not very much. These warming and cooling cycles have happened before. About 30,000 years ago, (before man arrived) the earth had a cooling trend and glaciers got as far south as St. Louis. What do you think dug out The Great Lakes? Then a warming trend took affect and the ice-cap melted & the Gulf of Mexico northern shore migrated to north of Dallas, Texas. How do I know all of this? I'm a retired geologist and have collected sea specimens north of Dallas.
|
Good post. I remember while in mud school they showed us a film going back like 5 million years that ran for about two minutes showing they changes of where water used to be, dried out, got water again. Very educational, would love to find that again.