He certainly left the proverbial cat out of the bag, didn’t he? Did he intend to do it, or did he blurt it out? Why do I ask? Because nobody ever blurts out a lie. If it’s blurted out, it’s the truth. Of course, in THIS case, we already knew the truth. The prof merely agreed with us.
Answer: because it is the truth. The models are imperfect.
Yes, he probably did.
Klotzbach is with the Colorado State University meteorology dept... was an underling to good-guy and denier William Gray (past away a few years ago). Gray taught his students well.