Going vegetarian only reduces emissions by 2.1% 4% from the food, but rebound (vegetarian food cheaper => increase in other consumption => slightly higher CO₂ emissions) lowers this reduction by 1.89%. https://www.sciencedirect.com/science/article/pii/S0921800915002153?via%3Dihub …https://twitter.com/MariGriffin/status/1053780228118642688 …
This is an LCA, consistent with LCA metastudy which shows similar result: reduction *without* rebound to be 540kg CO₂e/yr (table 1), or about 4.3% of OECD CO₂e emissions. How is LCA not the right way to study this? https://www.sciencedirect.com/science/article/pii/S0959652614012931?via%3Dihub …