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This 3 page Class Notes was uploaded by Alexandra Torres on Monday December 7, 2015. The Class Notes belongs to ISS 310 at Michigan State University taught by Dr. Lucero Radonic in Fall 2015. Since its upload, it has received 12 views. For similar materials see People and Environment (I) in Social Work at Michigan State University.
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Date Created: 12/07/15
Lecture 21 Hydraulic era- The control of river. Create dams Manage electricity Reservoir capacity around the world Global water development- 20 century. Modifying rivers for irrigation. After world war two, there is an increase of global development (100 years) More than 50,000 dams around the world. 60% of the largest rivers have been heavily altered. 25% of the rivers are dry before they reach the ocean. (Like the one we saw on the documentary last class) Reservoirs take 5.5% of the fresh water available. This makes 20% of the total water surface area. President Roosevelt: We need the dams for development Candidate Goldwater: At first we thought that we need dams for development, but then he changes his mind and decided that we should be against the dams because we lose an important part of the environment. Take into consideration the importance of the wellbeing of fish and other natural resources for human survival. Use of the rivers 20% of global electricity is provided by hydropower. Irrigation Storage. Transportation, like the Panama Canal. Flood and drought risk moderation. STUDY THE GRAPHS ON THE READING FOR THIS LECTURE Natural dynamic habitats are lost if you control the natural flow of the river. Evolution of species become interrupted when you modify the natural flow of the river. Large scale impacts. People who depended on foraging and hunting end up being homeless. Loss of livelihoods. Loss of the benefits that the rivers give us. Like flood mitigation and floods that can be good for the environment. Post-Hydraulic era In developed countries we are in a post hydraulic area. Example the US has stopped building dams It is not a reality for every country in the world. Other countries are still building dams. Example: The Colorado river. NEW VIDEO: Renewal What is minute 319? Bilateral agreement between Mexico and the US to save the Delta Colorado River. March 2014- Started the process of renewal for the river. What is a Pulse Flow? The release of natural water in way that mimics the natural flow of water. How does it reflect a paradigm shift? World Commission on Dams (1998-2000) Group of scientists that choose 100 dams in 79 countries and research them. Dams helped development. “In too many cases an unacceptable an unnecessary price was paid for the dams” Too many people lost their livelihoods and the ecosystem was destroyed. Free, prior and informed consent: The agreement that if you want to build a dam you need to know what are the affected parts and the affected people. You need to consults the parties that are affected. Manage downstream impacts Share benefits with the affected people. Consider the removal of existing dams Dams have a 50 tear life expectancy. DAOCUMENTARY: DAMNATION What are the uses, benefits and impacts? Dams: Electricity Jobs Bombs for World war 2 Impact: Affect the salmon Elmer Crow- He used to survive form the falls. Elders saw the “river de” What were the shifts in water development? What are different environmental perspectives? John Miur Environmental justice? Environmental justice issue: They take away rights of native Americans. They interrupt their livelihoods. The salmon was connected to their cultural identity.
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