- The difficulty of obtaining
meaningful global temperature data, due to land use changes, equipment changes, location changes, gaps in records, varying station numbers and gaps in geographic coverage.
All in all I am bemused as to why BEST thought they had constructed a
meaningful global temperature to 1750 when it appears to be based on
data from 10/15 European stations from that date, which contain some of the most potentially highly adjusted
data of any in the record.