re: #233 Nadnerb

How do the Vostok ice cores relate to this graph?

What do you mean?

There have been 7 studies using a variety of different proxies since 1998 that have all verified Mann’s conclusions. There have also been several reviews of McIntyre’s and McKitrick’s criticism of Mann’s 1998 paper that show Mann’s statistical approach was valid and that M&M’s claim of random data creating a hockey stick was disingenuous. They ran their code close to a thousand times and selected the dozen or so data sets that produced either a right side up or upside down hockey stick and presented only those.