Yes, that's a sample of one. YOU can/will do that. A government buying $50m worth of oil & gas for its needs (i.e. Army vehicles) won't be doing that. So unless

Yes, that's a sample of one. YOU can/will do that. A government buying $50m worth of oil & gas for its needs (i.e. Army vehicles) won't be doing that. So unless you are willing to buy $50m then it doesn't matter how much oil & gas you burn in your background ($100 perhaps before the neighbors call the police and the FD on you?) The fuel is meant to be consumed. Majority of the fuel purchased will end up being consumed a very certain way. Now, how do manage the cost of this handling? I recently listened to some EU minister saying that "super markets include the cost of recycling in the price of the milk carton". I didn't know that when I buy something from a super market I pre-pay for the recycling - which made me feel stupid since we pay extra in admin-costs in our building for this - anyway such is life). So back to the oil & gas. Let's assume that 99.9% of oil & gas will be consumed in the standard process. We can make an average calculation on the technology it will be consumed in (i.e. 50yo old bus vs new bus - different polluting outputs). With a certain (?) degree of confidence we can estimate the pollution that will be created. Is it absolute? No. Is it better than nothing?