Going green, and blue, and red, and pink...
If we're talking alternative fuels, there only one AltFuel good enough for the US Navy: Unicorn farts.
High energy content, smells nice, and actually removes CO2 from the air when it burns!
There is one caveat; Ironically this potent fuel is a bit TOO energetic for long-term reliable use in engines. Happily tho a small admixture of gnome farts produces a satisfactory burning rate.
Biting the hand that feeds IT
