Illustration for article titled The Roar of the Masses Could be Farts, Part 6: How Cows Work

The debate rages back and forth about whether cars or cattle are worse for the environment. As a global warming agent, methane is 23 times more powerful than carbon dioxide, and bovines pump the stuff out by the pantsful — estimates arrage around 26-132 gallons per cow, per day. There are 1.5 billion of the animals in the world today, and it's estimated that agricultural methane production could increase 60% by 2030. [Howstuffworks]

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