For 200 years industrial civilization has relied on the combustion of abundant and cheap fossil fuels.
Coal is far and away America's most abundant fuel.
With abundant fuel and increased speed limits in most states, automobile companies are unveiling 1989 models in emotional new advertising campaigns.
It would be tragic to build pipelines to import increasingly expensive natural gas, while we pay and pay to bury an abundant fuel.
Iran possesses abundant fuels from which to generate energy.
And they could well find themselves in a system with abundant fuel for them, but lacking the reserve fuel necessary to maneuver to it.
It is this slim chance of two protons going through this sequence that limits the speed at which the Sun burns up its abundant fuel.
Earth would have cheap and abundant fuel.
They demand vastly more efficient cars and trucks, as well as more benign forms of coal, the world's most abundant fuel.
Without nuclear power, and with oil and natural gas prices set higher by Moscow each year, the United States had returned to its most abundant fuel.