In this blog I have done a lot of looking at two nearby towns on the Great Plains. The reason for doing this is that such temperatures should be somewhat similar. They should not have strong bias's over short distances like 15 miles. Today's example is of Geneva, Nebraska and Fairmont, Nebraska, two towns merely 15 miles apart. These two towns are especially intersting as Fairmont has an elevation of 1641 feet and Geneva 1644 feet. No one can claim that there is a lapse rate of any importance between these two towns.
The thermometers are, however in a particularly good place to test out the urban heating of a house. Geneva's MMTS is located 12 feet from a house, in a neighborhood. Below is the picture.
Fairmont Nebraska's Stevenson Screen is sited at least 100 meters away from a house. It's station is shown below. Pictures of both stations are from Anthony Watts' surfacestations.org site.
Geneva should be subject to heat being emitted from the house during the winter and thus should be warmer during the winter than Fairmont. This is precisely what we see. Every winter, Geneva, Nebraska is warmer than Fairmont by about a degree. This can't be due to CO2 because CO2 doesn't go up in the winter at Geneva and down at Fairmont. This can only be due to heat affecting the validity of the Geneva measurements.
Why in the world the global warming hysteriacs can act as if they are collecting data of sufficient scientific quality is far beyond me. As a physicist, I learned that the first thing one must do is ensure that the measurements are free of bias--and this is something that the climatologists are not doing.
I would point readers to my previous blog calculating how much heat is added to the radiation field of a city, even a small one, by our modern lifestyle. how energy use warms the earth