[mountainlion]

I’m one of those in the “all of the above” group

Me to. The sun supplies about half the heat to the earth. Radioactive decay in the core of the earth supplies about half also. CO2 concentration is about 0.0383% by volume (383 ppmv) or 0.0582% by weigh the atmosphere so how can it be the controlling factor?

[mc5cents]

CO2 concentration is about 0.0383% by volume (383 ppmv) or 0.0582% by weigh the atmosphere so how can it be the controlling factor?

Why you CLIMATE DENIER® you! Don't you know that CO2 is a Greenhouse Gas?