On Tue, Dec 8, 2009 at 6:44 PM, Richard Prosser wrote: > Russell, > > You've forgotten the CO2 released in the brewing operation. > > Add beerless to the list. You're probably OK, as the brewing process only releases CO2 containing carbon which the barley extracted from atmospheric CO2 whilst it was growing, so beer is carbon neutral (so long as you ignore the energy used to power tractors, lorries and the brewery). Chris -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist