| Urban Climate |
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TEMPERATURE ''Main article: Urban Heat Island '' Urban areas tend to be significantly warmer than their rural (and possibly , scientists call this phenomenon the " Urban Heat Island effect." {Link without Title} RAINFALL Cities absorb much less water per square metre than rural areas, as much of them is paved or built on. In some areas this creates a need for specific measures to reduce the risk of localised Flood ing during periods of heavy rainfall. Measures include the use of Rainwater Storage and Drainage systems. In some areas this may involve Storm Sewer s to collect rainwater separately from household Blackwater , to reduce the risk of polluted water overflowing during periods of rainfall heavy enough to overwhelm sewers. VEGETATION According to one study, the growing season in east coast U.S. cities is fifteen days longer than in the surrounding rural areas. This is attributed to the higher temperature. {Link without Title} SEE ALSO |
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