A dam in Guanacaste Province, Costa Rica, drives a hydroelectric plant. Developing nations will require large amounts of new energy to achieve American and European living standards. Credit Joe Raedle/Getty Images
The average citizen of Nepal consumes about 100 kilowatt-hours of electricity in a year. Cambodians make do with 160. Bangladeshis are better off, consuming, on average, 260.
Then there is the fridge in your kitchen. A typical 20-cubic-foot refrigerator — Energy Star-certified, to fit our environmentally conscious times — runs through 300 to 600 kilowatt-hours a year.
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