It is the nature of science that scientists make mistakes. They are meant to make mistakes. It is therefore absurd and not to mention childish and petty to have an entire section devoted to showing that (guess what?) McKitrick once made a mistake. If the mistake had affected history, if it had led to some huge controversy, that would be entirely different. McKitrick himself seems to have acknowledged the mistake quickly and professionally. Should we include a "list of mistakes" section against all living scientists? Be serious...