Cecil Moore wrote:
Mike Coslo wrote:

Tell me why the CO2 levels *ALWAYS* drop after reaching 280 ppmv.


I'm content to observe the geological record and
see that the CO2 levels have always dropped from
that value for millions of years. I also don't
know why the nucleus of an atom contains quarks.


Okay, I understand now. You don't actually know, perhaps don't even
care to know, but you do know you don't like any of the proffered
explanations.

Just as a point of info, the "weak sun" solar constant during
Precambrian times is at odds with the temperatures that they were seeing
at the time - keeping in mind that "time" is a vague reference to the
warm periods.

Paleosol data indicates that CO2 concentrations were much lower than
would be needed to offset the solar constant, and that CH4 levels of 100
- 10000 ppmv would have been needed to compensate.

Sooo, CO2 levels by themselves are not a good indicator of "the whole
story". CH4 is an even stronger greenhouse gas. It's also produced by
life forms. Humans, termites, ruminants.

There is something to look into. Perhaps the regulating mechanism is
based on that? Maybe the next leeburull plot will be to take down the
bean industry by banning them! ;^)

I also don't
know why the nucleus of an atom contains quarks.

Quarks are just smaller "points" of matter that make up protons and
neutrons. Nothing mysterious there. I think part of the confusion is
over the goofy names that physicists insist on giving them.

- 73 de Mike KB3EIA -