Originally Posted by
AllenG
Did you know that compressed CO2 is largely a secondary industry capturing the off gassing from fermentation?
If one wishes to keep it out of the environment then its source should be discouraged--beer.
I realized the irony of my comment - I was not so much referring to the CO2 used in this application, but the cartridges used to inflate a flat, that are then left on the side of the road by careless riders.
Save the beer.