Originally posted by Shuffler
Report on ABC (I think it was) talked about a jet that flew from europe to the US and back with no passengers. Stated how much fuel was burned and how much carbon was made. Only problem was that the carbon weighed something like 600% more than the fuel burned.
Seems if your a Global Warming "Enthusiast" your calculations can be as miscalculated as you want them to be.
Jet fuel is an
alkane - a group of hydrocarbons composed of only Carbon and Hydrogen (no Oxygen). Alkanes are also known as
paraffins. You seem to be overlooking the fact that when jet fuel burns, it combines with
oxygen from the atmosphere !! An atom of Carbon (C) has an atomic weight of 12, and a molecule of Oxygen (O2) has a molecular weight of 16 so that CO2 has a molecular weight of 28. Thus, if two tonnes of CO2 are produced by the burning of jet fuel, more than one tonne of the CO2 produced comes from oxygen already in the atmosphere.
So as you can see, the total waste output from the burning of jet fuel weighs more than the fuel itself, because the combustion process uses oxygen not in the fuel itself, but in the atmosphere.
Moray and Hortlund will correct any mistakes I've made with the chemistry. And if they need help, they can always consult Lazs.
