The following are molecular models of our energy molecules - notice all the hydrogen (H) atoms

Combustion (Updated on 4/19/2006)
Hydrogen + Oxygen ~~> Water
Pure Methane + Oxygen ~~> COx + Ozone + Water
Pure Ethanol + Oxygen ~~> COx + Ozone + Water
Pure Bio-diesel or (FT) + Oxygen ~~> COx + Ozone + Water
Coal + Oxygen ~~> COx + Sulfur & Nitrogen Oxides + Ozone + Hg / HM
Petroleum + Oxygen ~~> COx + Ozone + Hg / HM + PAH's
COx = Carbon Monoxide & Carbon Dioxide = Carbon Oxides
(FT) = Vegetable or Animal Fat = Polysaturated Hydrocarbon
Hg / HM = Mercury / Heavy Metal Oxides (trace amts.)
PAH's = Polycyclic Aromatic Hydrocarbons (trace amts.)
Fuel Regeneration
Hydrogen <~~ (sec) ~~ Water
Methane <~~ (~1yr) ~~ Carbon Oxides + Water
Ethanol <~~ (~1yr) ~~ Carbon Oxides + Water
Bio-diesel <~~ (~1yr) ~~ Carbon Oxides + Water
Coal <~~ (millions yrs) ~~ Carbon Oxides + Water
Petroleum <~~ (millions yrs) ~~ Carbon Oxides + Water
"The Eyes of Nye" (Episode 11 - TRANSPORTATION)