No twentieth century warming 3

Hadcrut temperatures are fraudulent, for the Climategate files reveals that no one knows how they were constructed.

The Air vent attempts an honest reconstruction:

Of course, this reconstruction can only be as good as the data it rests on, which we now know from the Climategate documents directory to be poor.  I argue we should throw out all dubious data – which likely means we should rely on proxy indications of temperature for the early part of the century.