Many natural product shoppers are crestfallen to learn that organic dairy doesn't always come from bucolic farms where cows graze happily in green pastures. According to the current USDA standards, organic cows are required to have "access to pasture." Because of its vagueness, some organic companies have done little to adhere to the rule. Now the USDA is hoping to close that loophole. Grist reports: "Under the proposed rule, organic cows must be let out to graze in a pasture at least 120 days per year, and must get 30 percent of their feed from such grazing."