Phil ... was referring to your 15% figure in your original post .... doesn't change the fact the Global percentage skews the UK figures as our production methods result in about 1/3 of the global average .... the updated figure just means UK beef is responsible for 2.3% of our CO2 (probably less as our passenger car useage must be well above average when taken globally) ... you're absolutely correct that going vegan would reduce our CO2 ... but not by as much as the global derived figure would suggest ... but then so would living in tents to avoid concrete and using nothing made of steel.
My point was that the often-quoted figures don't reflect UK agricultural practice and as food is a basic requirement then there are glaringly non-essential areas that could be addressed first.
In spite of being an omnivore my diet is very light in meat, with a large majority of my weekly meals being meat free and the majority of the vegetables taken across the year being organically grown on site ... wholly in agreement that we should choose our lifestyles to minimise our impact ... of course not having kids is probably the biggest impact we can have going forward 🙂
K