reservoir is only minimally improving. This can be attributed to the slowing of the natural flow of the river due to the dam and reservoir. The reduced flow inhibits the rivers ability to flush out pollutants naturally (Bradsher‚ 2008). Even before construction began on the 3 Gorges Dam the Yangtze River was already suffering from extreme pollution but the addition of the dam has increased pollution levels. One reason is the use of commercial fertilizers‚ another is sewage from passenger boats that
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Energy Summary SCI/362 2013 Energy Summary Introduction In this paper we explain some current environmental problems and how some people are looking for quick and temporary solutions without taking into consideration the environment. These solutions might be beneficial for the human existence in the present time or for a short period of time but the imminent destruction of the environment will be permanent due to the damage caused by the last generations‚ which are now seeing the consequences
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the world has experienced great changes and development. This development is reflected in many fields‚ such as economy、society、science technology、education、culture and so on. This essay is going to talk about the 20 years’ development of China in three main aspects: economy、society and science technology. Firstly‚ the growth of Chinese economy over the past 20 years is remarkable. According to Knight.2012‚ the develop rate of Chinese economy is more than ten per cent per year in the past 20 years
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the Yangtze attracted a number of the baiji to collide with propellers‚ since the propellers produced much of the sound wave and confused the baiji’s audition (Ruland). Another assignable cause that destroyed the baiji’s habitat was dams along the Yangtze River. Thes dams further
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a work of renowned artist Edward Burtynsky. He is a photographer famous for his photographs of “manufactured landscapes”. This landscapes include quarries‚ factories‚ recycling yards‚ neighbourhoods‚ mines and even the biggest dam project in the world i.e the 7 gorges dam in China. The film shows him in China‚ as he shoots the evidence and effects of that country’s massive industrial revolution. With mind-blowing sequences‚ one of my favourites being the opening scenes when he was photographing and
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Reservoirs created by hydroelectric schemes often provide facilities for water sports. Become tourist attractions themselves. In some countries‚ aquaculture in reservoirs is common. Multi-use dams installed for irrigation support agriculture with a relatively constant water supply. Large hydro dams can control floods. Disadvantages 1. Ecosystem damage and loss of land Large reservoirs required for the operation of hydroelectric power stations may result in submersion of extensive
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Changes: Job and Lifestyle The construction of the Three Gorges Dam which has caused migration‚ changes in the lifestyle as well as choice of job of the local people of Fengjie‚ Chaina have been depicted in the movie “Still life”by Jia Zhang-Ke. The movie is mostly based on social issues. Additionally‚ it visualizes and emphasizes on how people’s life change when they become victims of floods and dam constructions; however‚ it never comes to a standstill. Although it is an experimental movie apart
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disadvantages. In some Asian countries‚ like Philippines and China‚ people can see the hydroelectric production clearly by year. There are some hydroelectric stations which are typical in these countries. Like the Bela in Philippines and the Three Gorges Dam in China. What’s more‚ we can also know something about the development of hydroelectric in these
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Many researchers are trying to find new renewable energy sources to help diminish carbon emissions‚ which cause global warming. Carbon dioxide (C02) is released from human activities as well as using fossil fuel these are the causes of global warming and the green-house effect (European commission 2003). The release of green house gases has risen because of increasing population and technology development which has resulted in high demand for the use of fossil fuels. This is a serious issue in many
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many‚ many years to come. Economically hydroelectric stations are extremely sustainable. Generally speaking it costs anywere from $100 Million dollars to $400 Million dollars to build one station‚ depending of size. The largest dam in the world (The Three Gorges in China) will cover the construction costs after 5-8 years of operation. Considering these power generating plants can last over 100 years this is incredible. Hydroelectric plants are for the most part self operated so on a regular
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