The author is mostly wrong in his facts and analysis, but concludes correctly that man-made CO2 is not a problem.
His conclusions should be supported by facts and analysis. Would you care to provide specifics of your concerns?
I just saw your analysis and link in a comment in response to Part V. You and swordmaker make valid points. I’m certainly hesitant to recommend his essays with the scientific issues pointed out and was considering asking that they be pulled.
However, with the above comments noted, they do provide a basis for discussion and I will make a link to your concerns in the other parts.