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Read more carefully. Yes; 280 to 400 required 120 ppm of human-added CO2.
Again, did you note that the last of the spectra I posted above was scaled in W/m^2. You and jc have both complained that gas spectra were typically scaled in percent absorbed. You wanted temperature. This is energy flux - even better.
BTW, if you think about it (and, gosh, I know you do), you'll realize temperature is worthless thing to ask for. Any temperature change would depend on the amount and spectrum of impinging radiation and the rate of heat transfer out of the 'system' (energy in and energy out). Neither of these are standardized scenarios. There is a reason you can't find such data.
And, you'll have to admit, a reason you insisted on it. You didn't know any better.
Can you answer the following question: Using the chart(s) you provided, what is the expected increase in temperature as CO2 increase from 280 to 400 PPM?
There are only two possible answers: a number between 0 and infinity or you're just a quack Cultist
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