Paul, I followed through this and, while there are places where it's awkward to understand, I think technically this all stands up. I can see why Canuk interpreted your writing the way he did, though.
As to the magnitude of the effects that you wonder about, I'd think these would be dwarfed by some of the main climate/anthro- forcers and influences.
But you never know 'till you think about it and ask, eh?
Who knows? Maybe magmatic influences will be found to predominate. Maybe magmatic currents will shift due to tectonic changes as ice melts, and ocean currents and atmospheric pressures shift.
...as an aside....
Did you know that man now stores about as much water in reservoirs as the amount of (missing) predicted sea-level rise?
Where did I read something like that recently?
p.s. I'll bet that water is a lot warmer than it would be if it were in the oceans! (there is some missing heat....)
