Girma you write “Jim, how would you explain the existence of a quadratic function in the temperature record?”
I dont even try. I merely ask the question, how can you prove conclusively that what you have observed, whatever that is, is definitively caused by an increase in CO2? With all the unknowns as to what causes changes in global temperatures, I dont see how you can possibly have established that CO2 must be the cause of the correlation that you have observed.
