Most livestock in the west is kept in poor conditions and fed grains. Fully grass-fed meat is not common here. Also, it takes about 4 years for a cow to be full

Most livestock in the west is kept in poor conditions and fed grains. Fully grass-fed meat is not common here. Also, it takes about 4 years for a cow to be fully grown and ready for slaughter. How little CO2 and methane do you imagine a cow produces during that time?!