Large dams on rivers pcom 640

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Risks Rights Responsibilities

Transcript of Large dams on rivers pcom 640

Page 1: Large dams on rivers pcom 640

Risks Rights Responsibilities

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Large Dams

o Generate hydropower

o Supply water

o Control flooding

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United States Hoover Dam

Dedicated on September 30, 1935 by

Interior Secretary Harold Ickes, who

declared “Pridefully, man acclaims his

conquest of nature.”

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Trillion cubic meters of water

China: Three Gorge’s Dam India: Hirakud Dam

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The Weight of the World’s Dams

Speed of the earth’s rotation

Tilt of the earth’ axis

Shape of the earth’s gravitational field

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Dams have caused flash floodsItaly’s Vajont Dam In 1963 a 330 foot wave rushed over the top of the dam

into the valley below and drowned about 2,600 people.

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Dams can cause earthquakesChina’s Zipingpu Dam

is 500 meters from a fault line.

Some believe it caused the Sichuan earthquake in May 2008, a 7.9 magnitude temblor, killed about 80,000 people.

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World Population of Dams by Country

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Protesters in India

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Where do we go from here?

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Energy Production by Sources

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Risks Rights Responsibilities