I was very saddened to learn of the sudden death of Bob Carter ( here here). He was one of the few people in this field that I regarded as a friend. He was only a few years older than me and we got along well personally.
I will not attempt to comment on his work as that is covered elsewhere, but do wish to mention something personal. In 2003, when I was unknown to anyone other than my friends and family, I had been posting comments on climate reconstructions at a chatline. Bob emailed me out of the blue with encouragement, saying that I was looking at the data differently than anyone else and that I should definitely follow it through. Without his specific encouragement, it is not for sure that I ever would have bothered trying to write up what became McIntyre and McKitrick (2003) or anything else.
We’ve met personally on a number of occasions over the years – at AGU in 2004 or 2005, and on several occasions at Erice, most recently last summer. He was always full of good cheer, despite continuing provocations, and unfailingly encouraging.