Cows (IMAGE) Penn State Caption The climate-change contribution of methane from cow burping -- often incorrectly characterized as cow flatulence -- has been the subject of considerable derision within the U.S. It is taken seriously in other countries, said researcher Alex Hristov, distinguished professor of dairy nutrition, College of Agricultural Sciences. Credit Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.