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Scientists at the country's national laboratories have projected enormous energy savings if the government takes aggressive steps to encourage energy conservation in homes, factories, offices, appliances, cars and power plants.
Their studies, completed just before the Bush administration took office, are at odds with the administration's repeated assertions in recent weeks that the nation needs to build a big new power plant every week for the next 20 years to keep up with the demand for electricity, and that big increases in production of coal and natural gas are needed to fuel those plants.

