There are a number of reasons why food is wasted. Some of it remains unharvested, some is rejected because it does not meet quality or aesthetic standards, some is damaged in transport or storage, some is surplus to requirements, some exceeds its best before date ... The list goes on.
But there are also a variety of organisations dedicated to rescuing waste food before it is dumped in a landfill site. Volunteers harvest unwanted crops, collect rejected food from the back doors of supermarkets, pass it on to vulnerable people, use it to prepare meals for the homeless, make it into jams and chutneys ...
It was fascinating listening but the bit that caught my attention was right at the end, when Tristram Stuart observed that the most effective food related campaigns in recent years (ie GM, sustainable fishing, free range poultry) have been largely consumer led, and suggested that if we, the customers, were to ask supermarkets to stock knobbly fruit and vegetables and make more of their food waste available to charities, then they would more than likely do so.
So, if you are concerned about the amount of food being dumped in landfill then exercise 'the power of we'.
PS It is worth noting that almost 50% of food waste is in our homes, and 60% of this is avoidable. So 'we' could launch our campaign in our own trolleys, kitchens and dining rooms. For tips on how to do this log in to Love Food Hate Waste