As I remind folks from time to time, an obsession with details is not normally one of my strengths. As a practical matter, it doesn’t matter what layer it is. What matters is that where infrared radiation is captured should be warming 2-3 times as fast as the Earth itself, and in point of fact, it doesn’t appear to be warming AT ALL: http://dailycaller.com/2015/07/17/satellites-earth-is-nearly-in-its-21st-year-without-global-warming/
Even if it were warming mildly, that would still not mean much, but that fact that we have long term, accurate measurements indicating no warming at all is a prima facie indictment of the whole farce.
All the NOAA does is skip the lies and damned lies, and go straight to statistics. Specifically, they use algorithms to ESTIMATE the temperature in places where they have no readings. GIGO. This should be obvious. Given that you are guessing, you can’t know if you are right.
The fact that they continue this nonsense, when they have very accurate satellite measurements which are vastly more meaningful scientifically, tells us all we need to know about their corruption and complicity in this astonishing hoax.