vago, you understand that a greenhouse makes the sun more effective right? So the "better" the greenhouse effect, the more effect the sun has?
Also worth noting is that, unlike previous sharp temperature peaks, whatever that 100,000 odd year cycle is, temperatures are NOT dropping, but for now appear to be rising.
so the lack of proportional temperature/co2 rise may be explained by the lack of temperature drop for all we know.
If this were a heartbeat, I'd keep a defibrillator handy. Granted the older the data, the less resolution/accuracy.