"Dan" wrote:


It is a simple matter to compare the isotopic ratio in the current
atmosphere to that in samples from ice cores.

Guess what that comparison reveals?

And these isotopes are recognizable in comparison to -- oh -- volcanic
activity? Or those altered by radiation exposure?

Yes, they are.

But that's irrelevant, of course. If these isotopes came from volcanoes and
radiation exposure, the ratio would be the same in ice core samples as it is
now, wouldn't it?

Hardly compelling.

Well, I can lead a denier to facts but I can't compel him to acknowledge
them.