re: NOAA Whistleblower: How world leaders were duped over manipulated AGW data

The graph uses two different data sets with two different baselines.

One (NOAA) uses a full century baseline of 1901-2000, the other (Hadley) uses a 30-year baseline of 1960-1999.

Obviously, the one that includes the early 20th century is gonna have a lower baseline because it was colder, so therefore the anomalies (difference from baseline as 0) will look higher