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Essay / Research Paper Abstract
5 pages in length. The phenomenon of urban heat islands (UHI) is a wholly manmade occurrence derived from humanity's tendency toward urban living. Vast numbers of global communities live in what can only be described as asphalt jungles comprised of too many people, too much pavement, too many darkly colored surfaces on roofs, roads and parking lots that make it incapable for the surrounding environment to reflect heat. As a direct result, temperatures in these areas of urban sprawl can spike an entire eight degrees in the summer when compared to their suburban and rural counterparts. Brazil's overwhelming pollution problem is particularly associated with the notion of urban heat islands, inasmuch as this rise in heat sets off a chain reaction of chemical compounds being emitted into the air that become worse with every degree in temperature. Bibliography lists 6 sources.
Page Count:
5 pages (~225 words per page)
File: LM1_TLCUrbHeatIs.rtf
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Unformatted sample text from the term paper:
comprised of too many people, too much pavement, too many darkly colored surfaces on roofs, roads and parking lots that make it incapable for the surrounding environment to reflect heat.
As a direct result, temperatures in these areas of urban sprawl can spike an entire eight degrees in the summer when compared to their suburban and rural counterparts (Rosenfeld,
1997). Brazils overwhelming pollution problem is particularly associated with the notion of urban heat islands, inasmuch as this rise in heat sets off a chain reaction of chemical compounds
being emitted into the air that become worse with every degree in temperature. Brazils population lends itself to the cyclical effect of urban heat islands, inasmuch as an overabundance of
people living in a finite area create what has come to be termed megacities where the components of UHI are compounded by trying to accommodate everyone. Sao Paulo, for
example, had just over a quarter of a million people at the turn of the twentieth century; one hundred years later, an astounding eighteen million people are crammed into the
same space that once housed a fraction of that amount (EcoHealth, 2005). As more people continue to make Brazil their home, that much more land is converted into houses,
buildings, parking lots and roads - the very things that transform an otherwise natural venue into a hotbed for the urban heat island effect. Of the myriad detrimental impacts
UHI imposes upon man and his environment, the most critical include: * Poor Air Quality: Hotter air in cities increases both the frequency and intensity of ground-level ozone (the
main ingredient in smog) and can push metropolitan areas out of compliance with federal air quality standards. Smog is formed when air pollutants such as nitrogen oxides (NOx) and Volatile
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