What science? Climatology today is science fiction but precious little science.
Please stick to the topic. Do you think it's sensible to determine global average surface temperature by ignoring all the actual surface temperature measurements, and instead using very dubious measurements of the temperature at 14,000 feet?
If you have specific problems with the Karl15 paper, I suggest you do some science. It would be a new approach for the deniers here, a break from their constant snide remarks, political rants and conspiracy theories. Write up your critique, show your analysis, and submit it to the journal for a healthy scientific debate. Not specifically you, anybody on your side. The world awaits your brilliance.