Scientists breathalyze cows to measure methane emissions
Thursday, January 10, 2019 - 09:00
in Earth & Climate
Cattle burps are the No. 2 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.