Originally Posted by svguy

Your logic is false. You are seemingly stating that "since a rise in CO2 doesn't always precede a rise in temp, CO2 can never be a temperature rise mechanism."

There are numerous mechanisms that could lead to a first rise in temperature that directly leads to an ocean CO2 outgassing. The first event could be a slight blip in solar activity. Or a methane hydrate release.

So while it might be instructive to look at past warmings (and coolings), it should also be understood that each may be the result of a different genesis. Just like looking at the Medevial Warm Period as contra-evidence of *current* CO2 effect. That is a fallacious assumption. The Medevial Warm Period is great evidence of..... well..... the Medevial Warm Period. There is no evidence to link the genesis of that to the current period.

So, with all due respect, your logic is wrong above.