what is the urbanization?
Urbanism is the study of cities. Urbanists look at the different factors present in a city. A city is different from rural areas. There are certain things than make people come to a city, to live and work there. There are also certain factors, like where the city is located, that have an influence on the economic, social and cultural development of that city.
impact of urbanization
The impact of urbanization has been estimated by comparing observations in cities with those in surrounding rural areas, but the results differ significantly depending on whether population data or satellite measurements of night light are used to classify urban and rural areas. Here we use the difference between trends in observed surface temperatures in the continental United States and the corresponding trends in a reconstruction of surface temperatures determined from a reanalysis of global weather over the past 50 years, which is insensitive to surface observations, to estimate the impact of land-use changes on surface warming. Our results suggest that half of the observed decrease in diurnal temperature range is due to urban and other land-use changes. Moreover, our estimate of 0.27 °C mean surface warming per century due to land-use changes is at least twice as high as previous estimates based on urbanization alone.
Current state of urbanization
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