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3 gorges dam case study
The three gorges dam impact essay
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The Three Gorges Hydroelectric Dam was envisioned as China’s new symbol of power in a world that is driven by the latest innovations. However, today it is viewed around the world as a catastrophic environmental disaster that became a reality through corruption, improper planning, and complete disregard to pleas of warning. The dam was China’s answer to control annual flooding, a problem that in 1998 displaced 300 million Chinese who lived on the banks of the Yangtze River. It was also China’s tactic to increase international trade by deepening the Yangtze River to accommodate large cargo ships farther into Mainland China. Most importantly, it was China’s 24 billion dollar investment to decrease the annual burning of 50 million tons of coal with the goal of producing 10 percent of China’s total electricity needs by 2012 in response to the needs of its growing population. Despite these goals of economic growth and clean energy production, government officials ‘cut-corners’ during inspection to save money and refused to listen to warnings from engineers and environmentalists regarding the potential environmental devastation. “China decided to launch the project – then solve the problems along the way.” (John Byrne, the director of the University of Delaware’s Center for Energy and Environmental Policy)
Located next to the town of Sandopuping in south-central China, after 17 years of construction, the Three Gorges Dam is a modern marvel that now stands as the world’s largest hydroelectric dam. It spans 1.3 miles across the Yangtze River, the world’s third largest river, and stands 610ft high. The Yangtze River runs 3,937 miles from the province of Qinghai in eastern China to Shanghai feeding into the East China Sea. The dam may ...
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...ww.scientificamerican.com/article.cfm?id=chinas-three-gorges-dam-disaster>.
Kennedy, Bruce. "CNN In-Depth Specials - Visions of China - Asian Superpower: China's Three Gorges Dam." CNN.com - Breaking News, U.S., World, Weather, Entertainment & Video News. N.p., n.d. Web. 20 Mar. 2011. .
"Nature Strikes Back at Three Gorges Dam | International Rivers." International Rivers. N.p., n.d. Web. 20 Mar. 2011. .
"Three Gorges Dam flooding turns deadly; dozens missing in China - CSMonitor.com ." The Christian Science Monitor - CSMonitor.com . N.p., n.d. Web. 23 Mar. 2011. .
There are nine dams in and directly leading to New York State’s Letchworth State Park. These dams have been built for a variety of reasons and affect nearly 400 miles of freshwater rivers in the Genesee River Basin of Western New York (Fish, n.d.).
A major flood on any river is both a long-term and a short-term event, particularly any river basin where human influence has exerted "control" over the ri...
Federal Emergency Management Agency’s article, “Benefit of Dams” (2012) analyzes how dams prevent flooding by releasing the excess water in controlled amounts through floodgates (¶ 3).
The one feature common to the Hoover Dam, the Mississippi River and the Three Gorges Dam is that they all try to control nature’s swings, specifically in the form of flooding. Before the Hoover dam was built, the Colorado river “used to flood spectacularly.but after 1900 the Colorado provoked a vehement response” (Pg 177). The response was simple, but large. The U.S. built several large dams, including the Hoover dam, on the Colorado to decrease its flooding and increase power and irrigation. Unfortunately, just as human control of the Colorado’s flooding increased, its organisms and habitats were detrimentally influenced, and the water became more and more salinated.
The negative aspects of Glen Canyon Dam greatly exceed the positive aspects. The dam’s hydroelectric power supply is only three percent of the total power used by the six states that are served by the facility. There is a surplus of power on the Colorado Plateau and with more and more power-plants being created in the western hemisphere, Glen Canyon Dam’s power is not needed (Living Rivers: What about the hydroelectric loss). Although the ‘lake’ contains twenty seven million acre feet of water, one and a half million acre feet of water are lost yearly due to evaporation and seepage into the sandstone banks surrounding the ‘lake’ (Living Rivers: What about the water supply?). The loss of that much “water represents millions, even billions of dollars” (Farmer 183). If the government were to employ more water efficient irrigation practices, as much as five million acre feet of water per year could be saved.
20 dams have been built, many of them by the U.S. Bureau of Reclamation, along the River and the tributaries. The Hoover Dam, which holds back at the Black Canyon to form the reservoir Lake Mead, one of the largest artificial lakes in the world. The Glen Canyon D... ... middle of paper ... ... nts for profit along the river's course can hardly complain when a river flows where it's supposed to go.
Grand Coulee Dam is a hydroelectric gravity dam on the Columbia River in Washington State, built by industrialist Henry J. Kaiser It is among the most famous dams in the United States. The reservoir it created is called the Franklin Delano Roosevelt Lake. The reservoir is named after the United States President who seemed to love dams and hydroelectric power and who was involved with the project through to the final completion of the dam. The dam was built as part of the Columbia Basin Project as a way to irrigate the desert areas of the Northwest United States. The dam started during the 1930s as a public works project and finished toward the beginning of World War Two. The initial construction plan was reconfigured during construction for more height. Its height was determined by the point at which the water from the reservoir began backing up into Canada. The scope and size of the dam is hard to comprehend. It is over a mile long and taller than the Great Pyramid of Giza, in fact, all the pyramids at Giza can fit within the base of the Grand Coulee Dam. The dam is so large that a truck at the base looks like a toy, this creates some perspective into the dam's true size. When the dam was completed in the early 1940s it was the largest dam in the world.
Over the years Glen Canyon Dam has been the spark for hundreds of debates, rallies, and protests. These debates have been going on for almost forty years now. The fact is that the dam created a huge lake when it was built, this is what bothers environmentalists. This lake is called Lake Powell and thousands of people depend on its tourists for income. The lake also filled up a canyon called Glen Canyon, some people say it was the most beautiful place on earth. The anti-dam side of the debate has its basis in the fact that Lake Powell is currently covering Glen Canyon. It was very remote so few people got to witness its splendor. This is probably the reason the dam was built in the first place, ignorance.
What: it gave jobs to unemployed workers. 726 ft high and 1,244 feet long. World's tallest dam, and second largest dam. Provided electricity and flood control, and regular water supply.
The use of turbines from dams to provide power was a brilliant idea until water levels started running lower than normal. The water waste from humanity is directly contributing to portions of it, aside from drought conditions affected by pollution, widespread fires battled, and more adds to the depletion thereof. When humanity is relying on power provided from dams to handle the demand, they are essentially relying on the assumption that water levels will always be there to provide it. The Hoover Dam provides power to the southwestern portion of the USA that has a large number of people.
China has a list of problems while maintaining one fifth of the world’s population. It covers around the same geographic area as the United States, but has twice the amount of problems, along with five times the amount of people. They have not had a lucrative past, and their future does not either. In order to fix such problems, the Chinese government has taken miniscule actions to further aid their country (Riley, China’s Population).
While China has been successful in the last few decades and has essentially made itself an economic super power using whatever means necessary, it is time for them to take a look at the rest of their future. China cannot sustain their growth using the same old methods. They must now look to address the needs of their people by introducing a more democratic society, a market that acts freely via supply and demand and actions that show responsibility for the entire world. The United States has a strong role to play in China’s future and it must do so to protect its own agendas and its status as a super power.
... This has resulted in increased pollution due to livestock releasing methane gas into the air. And due to demand for electrical goods from western countries, it has helped China to produce a capitalist economy. This has enabled China’s citizens to have a prosperous lifestyle, which has increased pollution due to the increase in energy use and waste production. Furthermore, although the Chinese government and its citizens are trying to tackle their environmental problems, it seems to be too little too late.
Developing our national economy, especially industry, requires a great amount of natural resources, such as land, water, oil, coal, gas and iron. However, the natural resources are limited and decline very quickly when a large population exploits them everyday. Take fresh water as an example, in 1990, 58% of Chinese cities (http://www.cass.net.cn/y_sjr/y_cn_sjr_334.htm) suffered from the insufficiency of water. It not only brings great disadvantages to people's daily life, but also has a passive influence on the economic development. Released by the Chinese Academy of Social Sciences, the economic loss caused by the insufficiency of water is 250 billion RMB per year, including 230 billion lost industrial output and 20 billion agricultural losses.
Many people have already dammed a small stream using sticks and mud by the time they become adults. Humans have used dams since early civilization, because four-thousand years ago they became aware that floods and droughts affected their well-being and so they began to build dams to protect themselves from these effects.1 The basic principles of dams still apply today as they did before; a dam must prevent water from being passed. Since then, people have been continuing to build and perfect these structures, not knowing the full intensity of their side effects. The hindering effects of dams on humans and their environment heavily outweigh the beneficial ones.