The external costs of food waste

Over 4 million apples and over a million and a half bananas are thrown away in Britain every day. This video from Newsnight is excellent on the external costs of the food we throw away - estimated by some to be worth around £8 billion a year. Should we actively encourage food scavengers? What are the strategies we should be adopting to reduce the amount of food thrown away? This is a good topic to use to teach evaluation skills for AS microeconomics.

Dioxin contamination and illegal dumping of waste

The Independent’s front page this morning offers a classic tale of externalities. For years residents of Campania have been found to be less healthy than residents in the rest of Italy. Mortality rates, particularly from some forms of cancer, are higher in the areas around Naples where the rubbish crisis is at its most severe. Now allegations are surfacing that the illegal dumping of waste in an area where waste management is under the control of the Mafia has caused excessive levels of dioxins to be found in Buffalo milk, one of the prime ingredients of mozzarella cheese beloved of pizza lovers around the world.

“The topping on a billion pizzas, the magic ingredient in a million salads, is at the centre of a major food scare involving pollution, corruption, the Mafia and southern Italy’s remarkable crisis in waste management.” In a separate piece, the Indy reports that “A recent report by Italy’s small business group estimated that the Mafia is the biggest business in Italy, with organised crime netting Mob bosses the equivalent of more than £63bn a year, or 7 per cent of the country’s gross domestic product.”

BBC news: Toxin scare hits mozzarella sales
New York Times: Italy’s Mozzarella Makers Fight Dioxin Scare

Information failure on plastic bags?

The Times yesterday carried an article on a dispute among scientists about the true scale of the risks facing marine life from the deluge of plastic bags find their way into our seas and oceans. The article came at the end of a week when Marks and Spencer introduced a 5p per bag charge for food sales and Gordon Brown threatened government action unless the supermarkets take fresh steps to lower the volume of plastic bags used annually.

The Economics of Food Waste

There was a terrific programme on the economics of food waste on BBC Radio 4’s Food Programme this lunchtime. “The Food Programme investigates the food waste created by restaurants, food manufacturers, supermarkets and airline caterers.” Details of the programme are available here. 

If we believe them, the scale of the mountain of uneaten food is vast and a stunning waste of scarce economic resources. Food waste comes from household bins, supermarkets, pubs, restaurants, airline caterers and other commercial food producers. From printing errors on packaging to errors on sell by dates, from food that is delayed in transit for just a few days to the dumping of wasted products from supermarkets that have failed to meet their sales targets, we are serial disposers of millions of tonnes of food waste.  How can we move towards a more sustainable future for our food industry? The methane gas from food waste accumulating in landfill sites is a significant and growing contributor to global warming. The programme offers rays of hope - there is money to be made from kitchen scraps that can be collected and converted into electricity and compost - but the scale of this is minute at present. A cultural change is needed - not least a change of behaviour by consumers and a move away from knee-jerk marketing from food retailers which take them away from longer term planning about how much food they need.

Growing food waste mountain blamed on get-one-free offers