This paper: https://clear.ucdavis.edu/sites/g/files/dgvnsk7876/files/inline-files/CLEAR-Center-Methane-Cows-Climate-Change-Sep-2-20_6.pdf https://clear.ucdavis

This paper: https://clear.ucdavis.edu/sites/g/files/dgvnsk7876/files/inline-files/CLEAR-Center-Methane-Cows-Climate-Change-Sep-2-20_6.pdf https://clear.ucdavis.edu/sites/g/files/dgvnsk7876/files/inl... References: https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2018/ghg_inventory_trends_00-18.pdf https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2018/g... Which says on page 17: > Livestock emissions are almost entirely CH4 generated from enteric fermentation and manure management, and most of the livestock emissions are from dairy operations. Enteric and manure management seem fairly close, both between 11-12 million tonnes with manure management being higher by some hundred thousand. I'm not sure what manure management is, I'm sure part of it is transportation, etc, but that's not "almost all of livestock farming emissions." In this paper (the errata): https://science.sciencemag.org/content/360/6392/987 https://science.sciencemag.org/content/360/6392/987 > In total, the “no animal products” scenario delivers a 28% reduction in global greenhouse gas emissions across all sectors of the economy relative to 2010 emissions (table S17). The scenario of a 50% reduction in animal products targeting the highest-impact producers delivers a 20% reduction in global greenhouse gas emissions.