According to Science News, city temperatures during one five - month period were measured to be “on average, 2.28 ° C [4.10 ° Fahrenheit] warmer than they were at spots about 10 km [6 miles] away from each urban center. ”
Sipas Science News, gjatë një periudhe pesëmujore, temperaturat në qytete ishin « mesatarisht 2,28 gradë celsius më të larta sesa temperaturat e vendeve që ishin rreth 10 kilometra larg çdo qendre urbane ».