The Business of Burps: Scientists Smell Profit in Cow Emissions

Peaches, a brown-and-white Jersey cow weighing 1,200 pounds, was amiably following Edward Towers through a barn on a sunny March morning when the 6-year-old dug in her front hooves. Mr. Towers, a 28-year-old-farmer whose family owns Brades Farm, near Britain’s rugged Lake District, slapped Peaches gently to move her along. She didn’t budge. Already muddy from a morning herding hundreds of cows to a milking session, Mr. Towers leaned all his weight into Peaches’ ample backside, until she finally stepped through a metal gate that would hold her head still for an exam.

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