Much like Bishop Hill—who described his results, with typical understatement, as "a bit fishy"—Eschenbach has found some very strange anomalies.
Once again, questions arise. You would expect the UHI adjustment (which began in 1980) to be relatively smooth. Instead, there is an adjustment of about 0.3°C around 1980, and then no further adjustment until 1997. At that point, there is an abrupt adjustment of about 0.65°, followed by a steep climb. These adjustments seem quite odd.
Again, this is something of an understatement. I would say that the results are a little more than "odd": at best they are deeply incompetent. At worst, they represent a deliberate falsifying of the data to show that global warming is actually occuring.
Now, why one earth would anyone wish to do such a thing? I can't imagine...