> Your last conclusion is rather obviously flawed. All you can conclude, > presuming your data are valid, is that CO2 cannot be the *only* > significant driver of global temperature on those time scales, a fact > which is universally agreed.
Actually, as long as these other drivers act independently of CO2, and we were to regularly see instances of maximal temperatures (22C) and minimal CO2 (200 PPM), and minimal temperatures (12C) and maximal CO2 (7000 PPM), that would be a pretty strong argument that the effect of CO2 is small. Because if it were big, other driovers would have to always counteract it in these min/max situations by coincidence (and if it wasn't by co- incidence, then we'd have strong negative feedbacks that always negate the warming, and you'd have to ask why these strong negative feedbacks would have been operative in the past and aren't today). Anyways, I think it's much more likely that the cited data is flawed. http://www.sciencedaily.com/releases/2005/01/050128223438.htm See, if we can have endless arguments about the hockey stick, covering a pretty recent period, it's hard to see how much faith to put into proxies going back hundreds of millions of years ..., particularly when said weak proxy evidence is proffered as an indication that other much stronger evidence for the effect of CO2 is rubbish. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
