Nick Stern's attack dog PR person, Bob Ward, has reached a new level of trolling. He seems to have taking it on himself to write to every editor of every journal I have ever published in, complaining about imaginary errors even if I had previously explained to him that these alleged mistakes in fact reflect his misunderstanding and lack of education.

Unfortunately, academic duty implies that every accusation is followed by an audit. Sometimes an error is found, although rarely by Mr Ward.

Here is an example. The left figure was in the Final Government Review Draft of IPCC WG2 AR5. The right figure will be in the published report. Spot the difference?