It was the best of times,
it was the worst of times,
it was the age of wisdom,
it was the age of foolishness,
it was the epoch of belief,
it was the epoch of incredulity,
it was the season of Light,
it was the season of Darkness,
it was the spring of hope,
it was the winter of despair,we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way— in short, the period was so far like the present period, that some of its noisiest authorities insisted on its being received, for good or for evil, in the superlative degree of comparison only.
I found the GHCN daily data files, and analyzed their 1600 stations in the lower 48 states. The yearly average showed more than three degrees F warming in the US since 1895 – about the same as GISS shows since Hansen corrupted the data a decade ago.
ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/ghcnd_all.tar.gz
Here is the daily data for the same lower 48 states from USHCN. It shows almost no warming.
It appears that GHCN must cherry pick or alter 1600 locations in the US to create a trend which doesn’t exist. The graph below shows the massive difference between GHCN daily and USHCN daily data for the lower 48 states.
Most of the GHCN US data seems to come from airports, which are known to be strongly affected by UHI.
So how did Richard Muller come to the conclusion that the world is heating up due and it is due to man-made CO2?
Simple : he used crap data from GHCN to generate the trend. CO2 must be very powerful stuff, as it appears to have corrupted the GHCN database. Garbage in, garbage out.