There are
different types of pollution and visual pollution is one of them, even though
it is less known by people. Unlike other types of pollution such as air
pollution, water pollution and land pollution which are measurable and
quantifiable, how do we define visual pollution since “ugliness” is
immeasurable?
Generally,
visual pollution is defined as “any unwanted sight that mentally or physically
affects the community or creates any health hazard”. It can be as simple as the
ugly scene of huge mountains of waste on the roadside and unpleasant odour that
affect your appetite or to a more serious extent which the overload of
signboards that distract the road users and causing more road accidents. (Muthukrishnan)
Figure 1
Mountains of rubbish were piling up in the Spanish city of Seville
Source: (Watson, 2013)
Figure 2
Different Forms of Visual Pollution
Source: (Muthukrishnan)
A major conflict between renewable energy and aesthetical
value is the wind farm. With the increasing concern of global warming issue,
cleaner and more sustainable renewable energy are developed with lesser carbon
emission. Wind turbines produce renewable energy by means of transforming wind
energy into electricity; the process has no by-product of gaseous emission. (Grimm,
2009) Hence,
there is an increase in popularity for wind energy.
World wind energy capacity has been doubling about every
three and a half years since 1990.
Figure 3
Comparing Total Wind Energy Generation for 1993 and 2011
Source: (World Energy Resources 2013
Survey, 2013)
Figure 4
Wind Turbines in Natural Landscape
Source: (Terrabotics)
In the form of visual pollution, wind turbines also
contribute to shadow flicker. Shadow flicker is defined as alternating changes
in light intensity caused by the moving blade casting shadows on the ground and
stationary objects, such as window on a dwelling. The major concern for it is
the moving visual silhouettes across building windows and possible
psychological effects of epilepsy and related health issues. (Grimm, 2009) However, this
annoyance can be minimized with careful siting, planting trees or installing
window awnings, or curtailing wind turbine operations when certain lighting
conditions exist. (Environmental Impacts of
Wind Power, 2013)
The video below shows how shadow flicker is caused by wind
turbine. Do you think it is annoying?
Source: (http://www.youtube.com/watch?v=MbIe0iUtelQ)
Figure 5
A wind turbine is seen near to a gate of the ancient city of Wushu in
Diaobingshan, Liaoning province
Source: (Zhu, 2012)
The wind energy is a form of renewable energy which reduces
the impact of air pollution; however, it is hardly avoided to cause the visual
pollution. Is wind turbine a nice sculpture for you or do you think it spoiled
the beautiful scenery?
(n.d.). Retrieved
September 7, 2014, from Terrabotics: http://terrabotics.co/
Environmental
Impacts of Wind Power. (2013, May 3). Retrieved September 7, 2014, from
Union of Concerned Scientists:
http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/environmental-impacts-wind-power.html
(2013). World
Energy Resources 2013 Survey. London: World Energy Council.
Grimm, B. (2009). Quantifying
the Visual Effects of Wind Farms; A Theoritical Process in an Evolving
Australian Visual Landscape. Retrieved September 7, 2014, from
http://digital.library.adelaide.edu.au/dspace/bitstream/2440/63374/2/02main.pdf
Muthukrishnan, N.
(n.d.). Visual Pollution - More Dangerous than You Think It Is.
Retrieved September 7, 2014, from C.P.R ENVIRONMENTAL EDUCATION CENTRE:
http://cpreec.org/161.htm
Watson, L. (2013,
February 7). Striking rubbish collectors cause a stink in Seville by
letting 6,000 tons of waste pile up on the city's streets. Retrieved
September 7, 2014, from CapitalBay:
http://www.capitalbay.com/uk/305832-striking-rubbish-collectors-cause-a-stink-in-seville-by-letting-6-000-tons-of-waste-pile-up-on-the-city-s-streets.html
Zhu, C. (2012,
September 10). China pushes wind power, but no quick payoff for producers.
Retrieved September 7, 2014, from Reuters France:
http://reuters.fr/article/newsOne/idUKBRE8880J720120910
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