[ndt]

"Please explain the periods between 650,000 yrs ago and now, when global average temperatures were warmer than now. Or did’nt you know about them? They lasted thousands of years. Please explain, oh explainer of simple truths."

To answer your question anyway...

Assuming CO2 was the main cause, a lag time is easily explained by the heat absorbing properties of the oceans.

If that is the case then we are in deep poo as that would tend to suggest that the temps are set to rise higher then anytime in the last 650,000 years.

But like I said, I'm not saying that.

[scrabblehack]

Hmm...I heard some of the same claims about ethanol that I’m hearing about methane hydrate...it burns cleaner, will solve our energy dependency, etc.