Ermias Kebreab is Associate Dean and Professor of Animal Science at the University of California, Davis. He holds the Sesnon Endowed Chair in Sustainable Agriculture. He conducts research in animal nutrition, mathematical modeling of biological systems and impact of livestock on the environment. He is contributing author to 2019 IPCC update on enteric methane emissions. He co-chaired the feed additive and methane committees of the Food and Agriculture Organization of the UN. He has authored over 250 peer-reviewed articles and received several awards including Excellence in Ruminant Nutrition and International Agriculture from American Society of Animal Science, and 2022 Chancellor’s Innovator of the year award. He served on two committees of The National Academies of Sciences, Engineering and Medicine on methane and nutrition of dairy cattle. He is a regular invited speaker including a TED talk that has been featured as one of the ‘must-watch climate talks of 2022’ by ted.com. His research was in the top 10 of all research conducted at the University of California system in 2021. He holds a B.S. degree from the University of Asmara, Eritrea and an M.S. and Ph.D. from the University of Reading, U.K.