Why do cows produce so much methane?



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    Agriculture practices are the source for the estimated 14% of the world’s greenhouse gases. A majority of emissions can be attributed to methane which is said to be 23 times more powerful than carbon dioxide; the U.S. Food and Agriculture Organization estimates that methane levels will increase by 60 percent by 2030. The world’s 1.5 billion cows and billions of other grazing animals emit dozens of polluting gases, mainly through chewing, burping, and farting; but mostly burping. One herd of cows can produce up to 450 gallons of methane every day alone.

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