Of the three authors, I consider the Koonin book to be the least impeachable since he mostly debunks unfounded climate conclusions with UN and government data. His book is full of charts and graphs. That activity creates a long list of high profile spokespeople who are reflexively compelled to discredit him instead of admitting their own false narratives.There are at least a couple of well researched and presented debunks / rebuttals of that Koonin book online. I haven't read it so I don't really want to get involved in a discussion about it, but it does not appear to be quite as authoritative as it's made out to be.
If anything I am seeing an increase in fake climate news recently, in part supporting the new climate spending bill.
JR