Speaking at the Environment Agency's annual conference, RH had this to say
[Then there were] the shenanigans around Climategate, into which I have looked very closely, and I can find no smoking gun, but the investigations into Climategate have really been rather inadequate, I think, from the point of view of the public’s expectations of what they would produce, and there has been a loss of public confidence in climate science...
Video here. Money quote from 3:45.