Eliminating oil, gas, and uranium from the future mix of energy sources cuts the amount of energy needed to mine, transport, and refine those fuels by 13 percent, while widespread electrification would have a dampening feedback effect on energy demand, because electricity is much more efficient at producing power than direct combustion of fossil fuels; for example, in transportation, an electric car can travel farther per unit of energy than a gas-powered vehicle.
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