Quote:Sorry. We can go by the preferred scenario by the IPCC (scenario C), which shows (in billions of metric tons (Gton)) humans 7.0, ( 50%), nature 7.0 (50%), for a total CO2 load of 14.0, with 10.5 (75%) absorbed leaving a net 3.5.Sorry, what are we measuring now?
I thought I was asking about the attribution of the 100-odd parts per million of increased CO2 in the atmosphere, and how much was attributable to anthropogenic sources. You said about 15. I don't know where that number came from, and it certainly doesn't square with my (admittedly feeble) understanding of the issue.
I understand where the 104 PPM comes from. Where does the breakdown into 15.3 PPM and 88.7 PPM come from? And how does the 88.7 break down, if not into anthropogenic sources?
-Jester