I have just read the link to the IPCC presser from the American Thinker piece. It says no such thing
You're a fraud....and a schill...you should be ashamed...
The IAC reported that IPCC lead authors fail to give "due consideration ... to properly documented alternative views" (p. 20), fail to "provide detailed written responses to the most significant review issues identified by the Review Editors" (p. 21), and are not "consider[ing] review comments carefully and document[ing] their responses" (p. 22). In plain English: the IPCC reports are not peer-reviewed.
Of course, I'm stunned that folks didn't know this before. The IPCC reports have never been peer-reviewed. Additionally, the IPCC is a policy group, not a group that does science.
One of the fundamental issues with this whole thing is that the alarmists depend on the fact that many conflate science with activism, and the alarmists certainly aren't going to correct any such misunderstanding.