Most often they are found by statisticians
And these statisticians that find most of the mistakes and correct the climate scientists believe that AGW is a sham? Can you show some evidence of your claim?
They don't "believe" anything. That is the realm of religion. What they observe (that's what science does) does not comport to what we have been told. I can go back throughout history and in no place do I find anything happening now, that is inconsistent with what has happened before. And in fact, this era is by far the most stable we have experienced since the Medieval Warming Period.
I suggest you actually look at some real science and educate yourself so that you can better discuss things.