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coal
Twenty percent of the worlds energy is supplied by natural gas.
OIL!
natural gas
fossil fuels
67%
Nuclear energy.Nucular EnergyNuclear EnergyLess than 1 percent of the worlds commercial energy is supplied by the sun. Solar energy is an under-utilized source of energy.
OIL!
coal
Germany as of 2007 they supplied 50% of the worlds solar energy
14%
Burning the stored energy of fossil fuel