It was broken down into individual elements, IIRC… found it…

philsturgeon.com/…/foods-carbon-footprint-7.jpg

Meat Lover -> No Beef alone is 3.3 -> 1.7, or 80% of the saving you get by going vegetarian (so I was slightly misremembering on my original post).

Full article:

philsturgeon.com/unf-king-the-climate-food/