It’s hard to make people understand how important this is ..!
NOAA and NASA say UHI isn’t important. Compare these two stations in Louisiana 50 miles apart.
Urban
Rural
The frequency of hot days at the rural station has plummeted, while they have skyrocketed at the urban station. And then we get a double fraud through homogenization.
Roald J. Larsen 
“It appears that these natural cycles affect temperature and natural levels of carbon dioxide (CO2) which then fluctuate over a wide range. This paper states that it is unlikely to have caused any warming, while this article concludes that, even if developed countries reduced CO₂emissions, developing countries would not. Worldwide measurements indicate a rise of 1 degree F (or 0.55 degree C) since 1880 but there is a lot of possible error in such measurements going back a hundred years. What is likely to be closer to the mark is the following graph of U.S. surface temperature measurements ..:”
http://www.earth-climate.com/
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