Managed grazing along with other regenerative techniques can sequester carbon in the soil. Factory farms have the problem of concentrated dung disposal which usually leads to letting it sit in methane producing conditions and also feed for intensive operations usually comes from non-regenerative crop farming which uses more fossil-fuel fertilizer and depletes the soil.

It's far easier do avoid producing so much meat. A vegetarian diet is perfectly healthy.

Stockyards are the worst offenders. This is due to how the dung is processed, which releases a lot of methane. Grass-fed cattle have much lower net emissions of greenhouse gasses.

I despair. Is it that hard for us to imagine eating less meat?