?  The temperature is going up whether or not we know why. If you claim insider knowledge into the missing heat then you're talking about the cause of the temperature increase, not about the fact of it. That makes you more of a theorist than an empiricist.  The question isn't whether the temp is increasing, but why it's not increasing faster ? If the heat is missing, then it's either not there at all or it's hiding someplace. If it's not there, then the whole thing is moot - except for - where did it go? If it's hiding, then where? And when and how will it reappear?  (Personally I think a lot of the missing heat is in an incorrectly analyzed hydrological cycle. But that's another story.)  And