Similar title to Chang, J. ORCID: https://orcid.org/0000-0003-4463-7778, Peng, S., Yin, Y., Ciais, P., Havlik, P. ORCID: https://orcid.org/0000-0001-5551-5085, & Herrero, M. (2021). The Key Role of Production Efficiency Changes in Livestock Methane Emission Mitigation. AGU Advances 2 (2) e2021AV000391. 10.1029/2021AV000391.