Hey Mr. Green,
I was touring Napa Valley's famed wineries with my sister and she got worried about the emissions from the fermentation. So how much carbon dioxide does it take to make all that two-buck Chuck? --James in Berkeley, California
Tell her to pour a glass and relax. Having a bottle of wine a day would total only about 50 pounds of carbon dioxide emissions per year (though there's no telling what that'd do to your liver). By contrast, the average car pumps out 10,000 pounds annually. So don't just avoid drinking when you drive--avoid driving to get your drink.