Food Carbon Footprint Calculator
I've posted plenty of times about the fact that food is one of the biggest contributors to our carbon footprint (20-33% depending on who you ask). Unfortunately most 'carbon calculators', including the UK Government's, do not count food.
Fear not, because someone, and it's not clear who, has developed a Food Carbon Footprint Calculator. Warning: it's very thorough and you might want to collect some info over a week first.
My food footprint was 1.375tonnes CO2 per year compared to an average of 2tonnes - mainly 'cos I shop local and organic were poss. Veggies and vegans will obviously fare better.