Locavores

Salon crunches the numbers on food miles, but finds that trying to be a locavore can make you a little loco. "I haven't torn out any hair, but my head does hurt a little wondering where to buy my next apple. Pirog's prediction that carbon calculations will eventually become passé -- to be replaced with more sophisticated indicators such as water quality impact and geopolitical factors -- doesn't help. The next time I go to the Farmers Market, maybe I'll leave my calculator at home." [Salon]