Quote Originally Posted by wufwugy
Since the 1980s, we have merged the data we have received into existing series or begun new ones, so it is impossible to say if all stations within a particular country or if all of an individual record should be freely available. Data storage availability in the 1980s meant that we were not able to keep the multiple sources for some sites, only the station series after adjustment for homogeneity issues. We, therefore, do not hold the original raw data but only the value-added (i.e., quality controlled and homogenized) data.
As to exactly what this means, I don't know.
Isnt this just the same old political tactic that so frustrates people who want answers without all the bs.

They're muddying the waters hoping that people just throw their hands in the air, as frustrated as they are lost. Good thing the author is around to then grab your hand and guide you to his ideology.