Met Office Hadley Centre and Climatic Research Unit HadCRUT4 and CRUTEM4 Temperature Data Sets Adjusted/Corrected/Updated… Can You Guess The Impact?

WUWT
"...and it seems like the impact of each adjustment/correction/update is to increase the appearance of recent warming. The move from HadCRUT3 to HadCRUT4 was particularly troubling, i.e.; ..."