Methane, explained

Methane, explained

Every time a cow burps or passes gas, a little puff of methane wafts into the atmosphere. Each of those puffs coming out of a cow’s plumbing, added together, can have a big effect on climate because methane is a potent greenhouse gas-about 28 times more powerful than carbon dioxide at warming the Earth, on a 100-year timescale, and more than 80 times more powerful over 20 years.

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