How much do we know about where our food comes from - and how much influence do we have? Charlotte Smith concludes her investigation into the complex world of global food chains.
What's the difference between a consumer and a citizen? Research suggests many of us talk in an environmentally conscious way outside the supermarket, then turn into ruthless bargain hunters once we're inside. Charlotte Smith ends her look at global food value chains by exploring how we shop, and how much influence we have over where our food comes from.
Producer: Chris Ledgard.
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