Roughly 40% of all global anthropogenic methane emissions come from livestock agriculture, mostly from cow burps. Joseph McFadden and Nirosh Senevirantne chat outside a recently completed animal respiration chamber on campus. For example, cows lose on average between 6% to 7% of the energy they consume to methane gas produced during digestion of carbohydrates. In 2020, an Australian research group found that adding a native seaweed to a cow’s diet decreased methane emissions by 80%. Researchers would like to understand enteric methane emissions as they apply to an entire herd.