Originally Posted by
Panthers007
The best thing to do is to purchase every CO2-cartridge you can. And never use them.
Failing that, taking a bit of CO2 from the atmosphere and letting it go back to the atmosphere isn't a mortal sin. Now if you were synthesizing Freon in your chemical-plant for the sole purpose of blowing up tires with - May a 1,000 Crows eat your eyeballs as you sleep.
No no a thousand times no! The CO2 cylinder factory used fossil fuel to make and pack that cylinder. I'll wager the CO2 itself comes from burning carbon fuel to get a CO2 rich stream to feed the compressor train (or whatever) that condenses it.
Go Green (TM)

. Use renewable energy to inflate your tires! Get one of these (crosses fingers hoping a deep link will work).