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Yam...my post with the graph had nothing to do with your post.
It had to do with surface temp measurement data manipulation by James Hansen at Nasa/GISS which is another subject altogether.
As to your 2 types of carbon in CO2 post...are you referring to the isotope balance of carbon12 vs. 13 found in temperate climates vs. tropical and the linkage of the temperate type to man made CO2? If so...that is a very problematic theory and is more related to agricultural carbon release rather than oil/energy emissions. Or...Is this the "jason legget" theory? That one doesn't wash either. Been debunked. I could post the whole debunking if you'd care to read it.
If not...what are you referring to? Links??
As a practical matter is does NOT matter what "type" of carbon is found in CO2 since CO2 does not cause any SIGNIFICANT warming regardless of concentration. Only in terrariums is it an issue. CO2 has gone up rather nicely in the last 10 years at the top of Mauna Loa...yet temps have either flattened or gone down.
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No longer posting. Reach me by PM!
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