I often wonder, how much double counting goes into these stats. Of course, dairy currently relies on fossile energy often. But how much of it is attributed else

I often wonder, how much double counting goes into these stats. Of course, dairy currently relies on fossile energy often. But how much of it is attributed elsewhere as well? Diesel, for instance, is often also attributed to big oil companies like shell. Cows are slaughtered and sold as meat at some point - is the dairy CO2 emission subtracted here? I don't think so.