Hydropower’s Unintended Consequences
As more emphasis is being brought to renewable energy, hydroelectric power is often seen as a viable and clean alternative energy source. Hydro electric has been a longstanding source of power for this and many other countries. In the 1940s dams were supplying 40% of our nation’s electricity, and now they only generate about 10% (science bulletins). Hydro power can be a clean alternative to fossil fuels; however it should not be considered an environmentally friendly alternative of energy production. Dams built for hydroelectric production have had staggering effects on the ecosystems of which they invade, both aquatic and terrestrial, and have rippling effects linked to ecosystems far outside the site of the dam itself. Dams can have adverse effects on water quality, fish species, migration of aquatic animals, and can create biological isolation by cutting off access of species from one side of the dam to the other.
Dam building took off in the United States after World War Two. This can be seen in the official slogan of the Bureau of Land Reclamation: “Our Rivers: Total Use for Greater Wealth” (science bulletins). Since then, the ambitious dam building is fully noticeable. “At least 68,000 large dams, and up to 2 million small dams, block virtually every American waterway” (science bulletins). The most highly hydroelectrically developed river in the country being the Colorado River (Lang). A river that drains over 259,000 square miles and flows through seven states (Oregon, Washington, Idaho, Montana, Nevada, Wyoming, and Utah) as well as one Canadian province, is dammed by over 400 dams (Lang). These dams create endless barrages for aquatic water life in what...
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...worth the environmental toll it takes, and if it is worth the decimation of any particular species.
Bibliography
Natural Resources Council of Maine (NRCM). Edwards Dam and Kennebec Restoration. Accessed March 29 from: http://www.nrcm.org/issue_edwardsdam.asp
Lang, Bill. Columbia River. Accessed march 28 from: http://www.ccrh.org/river/history.htm
Banks, John. Penobscot River project gets two boosts. Portland Press Herald, Thursday, February 1, 2007. Accessed march 28 from: http://pressherald.mainetoday.com/viewpoints/editorials/070201penob.html
Science Bulletins. Kennebec Dam Removal. Accessed march 28 from: http://sciencebulletins.amnh.org/biobulletin/biobulletin/story1206.html
Penobscot River Restoration Trust. Penobscot River Watershed History. Accessed April 1 from: http://www.penobscotriver.org/content/4004/The_River/
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.
The one feature common to the Hoover Dam, The Mississippi river and the three gorges dam is that they all tried 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.
This Paper will describe and analyze three articles pertaining to the ongoing debate for and against Glen Canyon Dam. Two of these articles were found in the 1999 edition of A Sense of Place, and the third was downloaded off a site on the Internet (http://www.glencanyon.net/club.htm). These articles wi...
Simonovic, S., Carson, R., W., 2003. Flooding in the Red River Basin – Lessons from Post Flood Activities. Natural Hazards 28(1), 345-365.
Since they started pouring the concrete for the dam Lake Powell has been a center of controversy. From nature preservationists to ancient ruins advocates the subject has been heated and intense. On the other hand, those who support Lake Powell are just as avid and active in their defense of the reservoir. One of the former, Edward Abbey, sets forth his plea, hoping it does not fall upon deaf ears.
The river, despite many efforts, found new channels to travel to every time the engineers thought they were getting close. Kevin Fedarko describes how difficult it was for the engineers to control the river, “After an all-out campaign that had cost in excess of $3 million, the breach was finally plugged and the Colorado was forced to resume its course through the delta to the Sea of Cortes” (p. 59). He not only mentions the work done by the men, but also the expenses that went into trying to harness the power of the river for resources. The research that goes towards building and designing dams has improved tenfold over the past 50 years. In an essay written by a student attending Harvard University, the student explained the great effect the dam has had on the surrounding communities, “It was felt that a dam that could control the river would also provide hydroelectric power, eventually rendering the dam self-financing. The growth of Las Vegas and Southern California as major metropolitan centers also depended, to a large extent, on the availability of water and power… the dam possessed an epic quality that stimulated the national imagination. It was apparent that the meaning of the dam itself was beyond even that of a structure that equaled the vast landscape it inhabited. The dam, and the people who built it began controlling nature in a new and powerful way” (par. 3). The author explains how years of advancing dam technology have given the nation a “stimulated imagination” and that has brought forth many of the world’s newest technological advancements. The dam has brought many people ideas and inventions to build and grow on. Dams are the gateway for life-changing tools for harnessing the power that we can get from renewable resources like water and wind that then eliminate harmful chemicals and debris for
When dams are created, such as the Glen Canyon Dam, their done so in hope to manipulate water flow for our benefit. These benefits, or positives come from a wide rang of categories. Some include hydroelectric power, controlled water supply, flood control, recreational areas for leisure activities such as boating and fishing. However, as we have progressed since the building of the damn in 1963, it seems we have dug up a lot more negatives than positives.
Dams continued to take over our nation’s rivers. After seven years of protests from environmental activists, I found on Wikipedia that Congress still gave the go ahead to flood Yosemite’s National Park in 1913. Then during the great depression, America started its two biggest projects, The Hoover Dam and The Grand Coulee Dam. According to John Harrison in “Grand Coulee Dam: History and Purpose”, both these dams created thousands of jobs and were thought of as national treasures. World War II created a huge demand for hydropower for building plans, ships, and bombs I found out from the article “History of Hydropower Development”. If it flowed it was dammed. At one point half of America was being powered by hydropower. Our country was becoming more and more dependent on electricity and technology struggled to keep up. Finally president Nixon passed the endangered species act. The Endangered Species Act Overview explains that this act protects animals that are affected by economic development. If any dam is at fault for endangering a species they are accountable by
Our use of science and engineering sets us apart from all other organisms. We are constantly modifying the land, oceans and atmosphere. It is estimated that we have over 2,500 dams in Michigan. Of the 2,500 or so dams in Michigan, only about 114 are utilized for hydropower production. According to the Department of Natural Resources, “Most of the hydropower dams and related facilities are regulated by the Federal Energy Regulatory Commission (FERC), with the exception of a few small projects that do not provide energy to the regional power grid.” In other words, although it’s a different form of energy that is beneficial to the environment of Michigan, the amount of hydropower dams is not enough to make a significant impact. The DNR go on to say the following: “Hydropower dams only provide about 1.5% of the power produced in Michigan because Michigan's rivers are relatively small and flat in comparison to the larger projects in Eastern and Western States. Altogether, the hydropower dams produce only about 400 megawatts of power. The 10 largest hydro dams in Michigan, only 10% of all hydro dams, produce about 47% of the hydropower in the State. Hydropower production is a very small component of Michigan's energy production and is unlikely to grow
We have built dams to prevent floods, store water and create electricity. An example of a damn in Michigan is the Sturgis Dam in Sturgis City. This is an image from the Upper Peninsula Power Company’s website that shows how a dam is used to create energy. These dams are called hydroelectric dams. The dam back up the water and when it is released, its power turns the turbine which then turns a generator to create electricity (“Hydroelectric Power,” (n.d.)). However, humans have also altered the waterways in a negative way through pollution. Because we have so many different uses for water, we end up polluted the water through the toxins that are released. If we do not do something and continue to pollute our waterways, there would be a very negative effect on every life form. Many industries, companies, as well as ordinary citizens in Michigan and all around the world are doing their best to cut down their environmental
In the spring of 1996 Farmer Johnson's field was inundated with water. This high water level wasn't due to natural flooding or heavy rains but a well built line of mud, rocks and logs 200 feet long that crossed the river near his property. Beavers were the cause of this years crop
A large issue we have that effects multiple different areas of our communities, are tragedy of the commons, which are actions that are rational but lead to irrational outcome. Government needs to take responsilbities to enforce rules for commons so they can diminish tragedy of the commons. Dams are a tragedy of the commons that only recently were come to the realisation of its more negatives effect they have on our world. Dams used to be seen as only positive, for their productful factors such as hydroelectricity and water supply. In this essay, I will argue that dams are an example of a tragedy of the commons proven by the documentary, Damnation, by the directors Travis Rummel and Ben Knight by describing that dams are highly subtractable
The topic of this literature review is wind power and hydropower. The purpose is discovering how wind power and hydropower influences the world and our lives.“Environmental science is the study of the interaction of the living and nonliving components of the environment with special emphasis on the impact of humans on these components. (Hartwick, What is Environmental Science?)
The Hoover Dam is one of the biggest dams and power plants in the world. It was built during the Great depression and continues to be a source of energy for the area. Between 1930 and 1936, thousands of people worked on the dam and ninety-six workers died from accidents directly relating to the building of the dam. It was the first human-made structure to exceed the masonry mass to that of the Great Pyramid of Giza.
Hydropower, the use of water to power machinery or produce electricity, provides the most renewable energy in the United States, and uses alternating current in most modern plants ("Hydropower…”). Hydropower relies on the water cycle and is a clean fuel source; it doesn’t pollute the environment like plants that burn fossil fuels. It is by far the most efficient way to generate electricity, being half the cost of using nuclear power, two-fifths the cost of using fossil fuels, and a quarter the cost of using natural gas ("Wind and Water…”). Also, hydropower is not subject to market fluctuations of embargos, and the average lifespan of a facility is 100 years. Hydropower also has many non-energy benefits such as water supply, flood control, navigation, irrigation, and recreation. However, it does face many environmental challenges such as impacts to aquatic habitats, aesthetic alterations of landscapes, changes to water quality, and interruptions of marine life ("Hydropower…”).