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You originally said the graph doesn’t tell us anything about heat. Now you’re arguing that it doesn’t tell us everything about heat. Which is obviously correct; but not what you started out with.

Edit: I see now that you’re not the person I replied to, sorry. I agree with you that one CO2 graph is not the whole story. It’s a big piece, though.

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It might be, but it's also possible that the larger body of context or knowledge is flawed in some way. Not so much the core physics of CO2 but the scalings of things. For instance some climatologists believe that natural cycles dominate anything done by humans. That isn't something you can prove or disprove from simply looking at a graph of CO2 and temperature together.

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