key points
Summarie
In this article, the author views on the positive and negative effects of dams and their affect towards us and the environment. The main purpose of a dam is to help stabilize floods, provide us with quality drinking water for irrigation, recreation, and even navigation systems. However, it has been noticed that the aging of the structure has brought the entire system overall to start lacking some of its main priorities. With the removal of these dams, there can be new possibilities of cleaner water, ecosystem restoration, meaning that dissolved oxygen levels will being to raise resulting in a balance of temperature. Some of the negative obvious effects would be lacking other methods as mentioned with the most considered being most likely flooding.
Write a reaction paragraph
This article really made me think about all the negative effects of those people mention that may be harmless. I really began to wonder if these people take into consideration the negative sides of the construction sites not only including dams, but other local areas that being tourism and make profit what so ever. Although these situations are really accountable for helping maintain economic benefit while at the same time sharing ideas with other countries and parts of the world to take home as well. The only down side to this I could see is all the flaws as viewed by scientists in how the aging of these constructions may end up after all disrupting our everyday lives. The only pro I could see from the down side on economic point of view is the contribution on the removal of these sites.
- By 1916 engineers had dammed Fossil Creek, redirecting water through flumes that wound along steep hillsides to two hydroelectric plants
- Those plants powered the mining operations that fueled Arizona’s economic growth and helped support the rapid expansion of the city of Phoenix
- 2001, however, the Fossil Creek generating stations were providing less than 0.1 percent of the state’s power supply
- Two years ago the plants were shut down, and an experiment began to unfold. In the summer of 2005 utility workers retired the dam and the flumes and in so doing restored most of the flow to the 22.5 kilometers of Fossil Creek riverbed that had not seen much water in nearly a century
- Trickles became waterfalls, and stagnant shallows became deep turquoise pools
- Scientists are now monitoring the ecosystem to see whether it can recover after being partially sere for so long, to see whether native fish and plants can again take hold
- Decommissioning dams (particularly small ones, as is the case in Fossil Creek) is becoming a regular occurrence as structures age, provide an inconsequential share of a region’s power, become unsafe or too costly to repair, or as communities decide they want their rivers wild and full of fish again
- Today about 800,000 dams operate worldwide, 45,000 of which are large-that is, greater than 15 meters tall. Most were built in the past century, primarily after World War II
- Hydroelectric power makes up 20 percent of the globe’s electric supply, and the energy is largely clean and renewable, especially when contrasted with other sources
- Dams control flooding, and their reservoirs provide a reliable supply of water for irrigation, drinking and recreation. Some serve to help navigation, by stabilizing flow
- The structures ruin vistas, trap sediments (needed for deltas, riverbanks and beaches), stymie migratory fish and destroy ecosystems in and around waterways
- In recent years, as the downsides of dams have become more widely recognized, groups made up of several interested parties-utility officials, regulators, policymakers, conservationists, native peoples, researchers and the public-have fought to decommission aging dams
Summarie
In this article, the author views on the positive and negative effects of dams and their affect towards us and the environment. The main purpose of a dam is to help stabilize floods, provide us with quality drinking water for irrigation, recreation, and even navigation systems. However, it has been noticed that the aging of the structure has brought the entire system overall to start lacking some of its main priorities. With the removal of these dams, there can be new possibilities of cleaner water, ecosystem restoration, meaning that dissolved oxygen levels will being to raise resulting in a balance of temperature. Some of the negative obvious effects would be lacking other methods as mentioned with the most considered being most likely flooding.
Write a reaction paragraph
This article really made me think about all the negative effects of those people mention that may be harmless. I really began to wonder if these people take into consideration the negative sides of the construction sites not only including dams, but other local areas that being tourism and make profit what so ever. Although these situations are really accountable for helping maintain economic benefit while at the same time sharing ideas with other countries and parts of the world to take home as well. The only down side to this I could see is all the flaws as viewed by scientists in how the aging of these constructions may end up after all disrupting our everyday lives. The only pro I could see from the down side on economic point of view is the contribution on the removal of these sites.