Cows emit a lot of methane, and are in fact the single largest source of agricultural GHG emissions globally. As I understand it, there's a fair bit of research going into how to reduce emissions from cows, but it would also be good to reduce the number of cows if possible.
- Emmisions related to livestock are 5.8% of _all_ global CO2 and other GHG emissions [0]
- Methane leaks from Oil and gas drill sites and abandoned wells alone account for 5.8% of global emissions. [0]
Ethically I am aligned with animal welfare but rationally it is a lot more realistically that we force Oil&Gas to clean up their act than to expect everyone worldwide to switch to oat milk.