Take a look at this: https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emis... You can

Take a look at this: https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emis... You can see there, that at least in the US (a major producer of beef) that there are much larger problems for us to solve before we focus on diet.