Urban areas account for about 1% of the Earths surface, yet over 50% of the world’s temperature readings are taken within urban areas.
This may not sound like it’s very significant until one begins to realize that urban areas consist mainly of concrete areas, and being concrete, they absorb heat, and release heat at night, creating an artificial warming effect, hence the urban island heating effect.
And if these readings from urban areas are feed into climate models, and are extrapolated out for the rest of the world, suddenly an artificial built in skew and warming bias is built into the computer models.
What Is The Heat Island Effect? (notice the date stamp)
Urban Heat Island Vs Rural Stations – Dr Michael Connolly
And could this heat island effect explain why the narrative went from a global warming narrative to a climate change narrative?