I've been engrossed in BBC Three's 'Blood, Sweat and Takeaways' - http://www.bbc.co.uk/programmes/b00kpd2z - and have always been an avid supporter of local profuce. However, watching this has made me question my local produce support. What is better: to buy produce that is local and therefore more environmentally friendly (i.e. it doesn't have to fly anywhere) or buy buy (fairtrade) products abroad? Which would have the greater impact? If you don't know, then how much of a twat is that bloke in Bangkok?