9 January 2019

Scientists breathalyze cows to measure methane emissions

Cattle burps are the number two source of methane in the U.S., but it’s tricky to measure exactly how much methane one cow produces in a day. That’s why researchers at the USDA-ARS Conservation and Production Research Laboratory in Bushland, Texas set out to use a number of different methane assessment methods — including a “breathalyzer for cows” — to determine the methane emissions of free-range cattle on Oklahoma grasslands.

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