It appears that Lister's group crunched some data on Chinese urban temperature monitoring and found that only about 60 %
of measured temperature increase was actual trend as opposed to urban heat island effect.
LeCompte: And
you measure the temperature increase, and in our calorimeter, it gives up energy and instead of getting the temperature moving up, light is emitted, which we turn into electricity.
The warming trend predicted in this scenario from 1988 to 2010 was about 0.26 °C per decade whereas
the measured temperature increase over that period was approximately 0.18 °C per decade, or about 40 % lower than Scenario B.
Model estimates of GHGs are considerably larger than
the measured temperature increase.
[SEPP Comment:
Measured temperature increases are closely related to local energy consumption, an indicator of increased human activity.]
However, for the decade 2000 — 2010,
the measured temperature increase is approximately 0.02 °C per decade.