3e+Hydro+--+Disadvantages

Hydro -- Disadvantages = Disadvantages of Hydropower =
 * Dams have a limited lifespan; they eventually overflow and break, causing enormous property damage and fatalities
 * Useful dams may be eliminated when environmental costs are determined to high
 * It is very expensive to build dams
 * There are 80,000 dams in the world but only 2,400 of them produce electricity
 * Can cause geological problems like earthquakes[[image:dieterichpm/zipingpudam.jpg align="right" caption="This is a picture of the Zipingpu dam. It caused the world's deadliest dam induced earthquake ever.From internationalrivers.org"]]
 * The Three Gorges Dam in China displaced over 1.2 million people when it flooded 13 cities, 140 towns and 1,350 villages
 * Three Gorges Dam cost $2.3 billion dollars
 * Nutrients (silt) get trapped in the reservoirs
 * Algae and weeds grow excessively and emit greenhouse gases, which in turn promotes global warming
 * There are many places where hydropower could be harvested in Latin America, Central Africa, India and China but is not
 * Ocean storms can wreck expensive equipment

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