nonrenewable fuel
Depletable power source
A nonrenewable fuel is an energy source that cannot be replenished within a human lifespan once consumed.
Coal, oil, and natural gas are the primary examples—formed over millions of years from ancient organic matter.
Unlike solar or wind energy, nonrenewable fuels exist in finite quantities: The nation's dependence on nonrenewable fuels makes it vulnerable to supply disruptions.
- fossilPreserved ancient organism
- coalCombustible sedimentary rock
- petroleumNatural underground hydrocarbon liquid
- oilSlippery viscous fluid
- oil wellPetroleum extraction site
gas · crude · natural gas · diesel · gasoline · drilling · extraction · combustion · carbon · carbon footprint · emissions · reserves · peak oil · depletion · finite · exhaustible · mining · refinery
nonrenewable fuelrenewable energy
Self-replenishing natural power
sustainable energy · solar power · wind power · hydropower · solar energy
nonrenewable fuelclean energy
Power from sustainable sources
eco-friendly fuel · green energy · green power · sustainable power · sustainable energy
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