‘Butter’ made from CO2 could pave the way for food without farming

US start-up Savor says its synthetic vegan fat, made without livestock or the crops needed for margarine, could cut carbon emissions and save rainforests

​US start-up Savor says its synthetic vegan fat, made without livestock or the crops needed for margarine, could cut carbon emissions and save rainforests US start-up Savor says its synthetic vegan fat, made without livestock or the crops needed for margarine, could cut carbon emissions and save rainforests