Welcome.
Canuck wrote:
"Here's two sources on how the Vostok ice cores shows conclusively that CO2 increases lagged temperature increases by 600-800 years for each of the past 3 deglaciations."
Two thoughts. The first is that you should go to the original work:
http://cdiac.ornl.gov/trends/co2/vostok.htmwhich I did and read it. Note the statement:
", the CO2 increase either was in phase or lagged by less than ~1000 years with respect to the Antarctic temperature...."
In phase does not equate with "lagged by 600-800 years.
The second thought is that its relevance, either way, is unproven. One would need to know all of the conditions that cause the change from plate tectonics to solar radiation to cloud cover to forest fires, etc. to make any decision. Heck it might even have had nothing to do with CO2 and been related to methane. We just don't know.
PS: Thanks for posting real links. They are appreciated.
