There is the Urban Heat Island Effect, where the growth of a city results in decreased greenspace, increased roadways (asphalt / concrete), increased structures, increased human and mechanical emissions, and increased thermal output as a result of power consumption. Cities do become warmer as they grow, quite separately from rural areas.
There is the Urban Heat Island Effect, where the growth of a city results in decreased greenspace, increased roadways (asphalt / concrete), increased structures, increased human and mechanical emissions, and increased thermal output as a result of power consumption. Cities do become warmer as they grow, quite separately from rural areas.