That the accumulation of CO2 is anthropogenic is about as far from an
open question as you can get.
The record of the past century is too different from previous times
for anything like a typical oscillation to account for it. The
isotopic evidence is just icing on the cake, really.
The ratio of carbon to air or water doesn't matter. The ratio of
arsenic to body mass that will kill you is pretty small too.
In the case of the atmosphere, it is the concentration of radiatively
active gases that matter, and that is changing at a substantial rate.
In the ocean, you need to consider the reaction rates of the various
organic compounds to understand the pH spike that the ocean is
getting.
I still recommend that you actually take the time to read the IPCC
documents rather than sharing your first impressions of the whol;e
business with those of us who have been thinking about it for quite a
while. It's really a pointless exercise.
OKC, you claim to be scientifically literate and seriously interested.
Presumably we have convinced you that we are reasonably serious.
Please, then, go read the documents that have been prepared for people
just like you. Just squawking on a mailing list without doing your
homework doesn't seem all that helpful to anyone.
mt
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