4. Trash or Treasure: Food

The UN estimates that each year, we throw away almost a billion tonnes of food. That&aposs an almost inconceivable amount, and one which has given rise to increasing innovation and activism. It&aposs not just about not emptying our plates or clearing out our fridge before the food goes off: one estimate has it that a third of perfectly edible food is thrown away at source simply because it looks misshapen or unappealing.

In this episode of Trash or Treasure, we speak to zero-waste consumers, change-seeking chefs and &aposdumpster divers&apos who save good food from supermarket dustbins; investigate apps which redistribute restaurant-surplus food; and visit the anaerobic digestion plant turning waste food into fuel and fertilizer.