Which came first, the chicken or the egg? Well, that depends on which specific chicken and which specific egg we are talking about, doesn't it? ;-) Every chicken has been preceded by an egg...but when was "the first chicken" there?

Eggs certainly preceded chickens by millions of years, given the fact that chickens are a much more recent development than the dinosaurs from which all modern birds presumably evolved.

But all that has absolutely no relevance to attacking scientifically collected data that indicates that periodic rises in natural CO2 levels are driven BY global warming and there IS data that indicates that. To categorically attack that data and deny what it indicates merely because you don't like it is to take a religious position on global warming, not a scientific one.

In other words, you have absolute faith that your present opinion must be right, and to hell with any scientific data that would threaten it in any way. That seems to be the standard reaction. "Interesting...", as Spock would say.