Global Warming Deniers Remain In Denial

They think of themselves as skeptics, but they're not.  They are deniers.  In this case they don't like the concept that in light of new data, old data is revised, whatever the outcome.  That's how science works.

 But, since the outcome isn't what the deniers want it to be, they feel compelled to attack the science.  That's how denialism works.