I have long believed that part of the global warming phenomenon was related to the urban heat island effect as well as better temperature gauging equipment. So it is nice to see someone, a 12 year old boy and his father, have crunched the numbers and have proven that at least part of the global warming data can be directly attributed to the UHI effect. I cannot think of a better activity for fathers and sons to spend quality time on than debunking global warming.
If you don't know what an urban heat island is, it is simply the effect that large amounts of materials like concrete and pavement that collect and retain heat have on the temperature in any given area. These materials make the overall temperatures read higher by absorbing heat during the sunlight hours and expelling it overnight, this creates significantly higher average daily temperatures.