I was always told that it propelled and chilled beer. But beverage expert hardly, I.
Fermentation creates CO2.
Maybe what we need to do in order to expose they whole man-made global warming myth is to personalize the issue for millions of Americans and tell them that they are coming for their beer next. (girlie malt beverages as well)
Then when snobbish people say it doesn't effect them, remind them that wine is fermented too.