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About one-third of all food grown for human consumption is lost or discarded every year, despite financial, environmental and ethical reasons to not waste food. We grow enough food to adequately feed everyone in the world, yet hundreds of millions of people suffer from hunger, malnutrition or food insecurity. Together it accounts for about 8 per cent of the world's total greenhouse gas emissions. So, if wasting food is such a patently bad idea, why do we discard so much? In Why Waste Food?, Andrew F. Smith investigates one of today's most pressing topics, examining the causes of avoidable food waste across the supply chain, and highlighting the ways in which we can all do something to tackle this global concern.