termites are worse.Its the cows , pharting mate ...so we're told , nothing to do with man at all.!!! It all their fault ...standing there ...munching all the grass .... blowing it out of their asses ...obvious ...the government said so.
Multi-pronged argument. Cows eat a lot but only feed so many people for a short period of time, so you need shed loads more land to live by eating cows. Hence massive forest clearances to provide grazing, and a lot of beef is shipped around the world, so even larger CO2 footprint - eat local beef in smaller quantities is the answer for those who don't like rabbit food.
Methane you've already covered.
There are also other arguments about using anti-biotics, river pollution and a few other things to provide cheap meat.