According to the US Energy Information Administration, renewable energy accounted for 6% of all 2003 energy, and of that 6%, only 1% was from solar and 2% from wind (the rest coming from biomass, geothermal and hydroelectric). This means that solar and wind comprise .06 x (.01 + .02) = .0018 of US energy. Accounting for less than 0.2% of energy, solar and wind would have to increase by a factor of over 500 to replace other energy. Multiplying the 500-fold increase in solar/wind by the 180-fold increase in production means that energy from solar/wind would have to increase by a factor of 90,000 by 2050 for people throughout the world to consume at the rate of the richest 5% in the US.
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