Calculating Their Carbon Hoofprint

Scientists in England hope to cut greenhouse gas emissions and reduce global warming by getting cows to burp less. The average dairy cow spews out 26 to 52 gallons of methane every day and, contrary to popular belief, most of it comes out of their mouths. Scientists at the Institute of Grassland and Environmental Research figure if they can change the cows’ diets, they can help the environment. And make Al Gore feel better about drinking milk. It shouldn’t be hard. After all, they figured out how to make burpless cucumbers, didn’t they?

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