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It certainly isn’t getting any warmer here, with the coolest start to Summer in Australia for the last fifty years. But according to the alarmists, that’s just weather.

Ed Caryl suggests that most of the land based warming recorded in the USA over the last 60 years can be traced to the influence of nearby heated buildings, with measuring stations more than 100 metres away from a heated building showing cooling rather than warming over the same period.

As can be seen on the plot, town population made almost no difference to the trend. The dots are nearly completely random with respect to population. On the other hand, the distance from a heated dwelling made a much larger difference. The two coolest sites were more than 100 meters from the nearest building. Within the population limits of this study, the Urban Warming Influence is simply the distance to the nearest heated building, not the size of the city.

This phenomenon is the reason for much of the Arctic warming. Urban Warming in the Arctic, and indeed in the Antarctic, is an occupied-building-to-temperature-sensor distance problem. In the polar regions, the temperature differential between occupied buildings and the outdoor temperature sensors is much greater than in the temperate mid-west U. S., so the distance must be greater to avoid the UWI problem. But man doesn’t like digging long cable trenches in ice or permafrost (it’s like concrete!), or walking long distances in –40° weather, so the measurements are not done properly.

It is clear to this author that measured “Global Warming” is simply due to increasing nearby energy use and the temperature sensor proximity to the resulting heat.

In other words, as Ed himself points out, if you heat up your thermometers, you will find warming.

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