Animals also output methane, and there are land-use issues with meat production. https://en.wikipedia.org/wiki/Environmental_impact_of_meat_production#Greenhou

Animals also output methane, and there are land-use issues with meat production. https://en.wikipedia.org/wiki/Environmental_impact_of_meat_production#Greenhouse_gas_emissions https://en.wikipedia.org/wiki/Environmental_impact_of_meat_p...