The High Cost of the Food Superhighway

Have you noticed the extraordinary reversal of interest in the media in recent months? Growing your own food in a natural, organic way and involving the community has become big news. Television crews are being sent to profile community supported agriculture programs, newspaper columns are being written about the need for more allotment growing spaces and politicians are proclaiming that we should eat more local seasonal produce. What is particularly amazing about this is that in any other culture and time all these things would never be considered newsworthy. Only in our crazy modern food system has growing your own food become the exception rather than the rule.

This state of affairs was highlighted very well by a recent BBC documentary ‘Crop to Shop: Jimmy’s Supermarket Secrets’. The presenter, Jimmy Doherty, is well known in the UK as a rare-breed pig farmer featured in a fly-on-the-wall documentary series that followed the trials and tribulations of his farm as he tried to convince the British public to buy locally-farmed organic pork. In the documentary he presents a very ‘balanced’ view of the issues surrounding the production and transportation of out-of-season products for our supermarkets across the world. For someone who is such a strong advocate of local produce, coming face-to-face with the super-farming methods that supermarkets rely on was fascinating to watch and revealed some startling statistics.

For example, to get new potatoes into British supermarkets in winter we import them from Egypt. Not that surprising - after all they are going to need warmth and sunlight to grow. But here’s the incredible process:

1. Seed potatoes grown in Scotland are exported to Egypt
2. The potatoes are often grown in desert sand, fed by huge sprinkler systems. Because the sand contains no nutrients, fertilizer must be mixed into the water that is sprayed onto them.
3. Water is a scarce resource in the desert so they drill down over 350m below ground level to a huge water system under the Sahara, which will never be replenished. It takes a staggering 500 litres (880 pints) of water to produce just 1kg of potatoes (2.2lb).
4. To protect the potatoes on their journey to the supermarket and to retain moisture they are packed with peat – which is bought in from Ireland!
5. The potatoes then make a huge journey over 2 weeks by specially refrigerated container truck and ship to reach the supermarkets in the UK.

Non-Renewable Resources

Have you noticed how many non-renewable resources are being used in this process?

• Oil: The seed potatoes, peat and finished product travel an astounding 11,500 miles round trip (equivalent to almost half way around the earth), all fuelled by oil.
• Fertiliser: Largely derived from oil, vast quantities of fertilizer are required to feed crops grown in sand.
• Water: In a country where pure water is incredibly scarce it is being sprayed onto crops in the heat of the sun in a desert!
• Peat: Despite the company claiming that the peat comes from a renewable source, it takes so many thousands of years to renew peat (one of the best ‘sinks’ of greenhouse gases we have) that this can hardly be considered environmentally sound.

Many other examples were also profiled by Jimmy Doherty:

• 165 million packets of beans flown in from Kenya per year.
• Peppers grown in vast greenhouses in the Netherlands that require their own gas-fired generators to maintain warmth and light through winter.
• Fruit from countries like Ghana which is air-freighted because, even with sophisticated packaging, it needs to be on the supermarket shelves in just 48 hours.

The Real Story

This is the story that should be hitting the headlines: an unbelievable reality distortion, caused by the combination of market forces and cheap oil. The inefficiencies are mind-boggling, especially when you consider that many of these crops can be grown and stored for months in the UK, or are part of our natural seasonal variation in harvest. Don’t get me wrong – I’m not arguing for an end to imported food because I understand the need for a variety of fresh produce in winter, high-tech ways of preserving produce and the value of export crops to workers in Africa. However, market forces have led to something else: an environmental nightmare with 25% of our carbon emissions due to food transport alone.

The food superhighway is utterly amazing but it is not ethically neutral, as is clear from the recently released film Food, Inc. We have become so used to its vast wastage and crazy use of non-renewable resources that we have become immune to the real issues and now think growing your own food is amazing, inspirational and progressive. Imagine trying to describe this to someone living at the turn of the last century – they would declare our civilisation mad!

I’m glad that the media now feature community land-share groups and food cooperatives as news-worthy. However, they need to become more than just ‘oddities’ that are slightly quaint and become a real alternative to the crazy excesses of the supermarket system. Wouldn’t it be wonderful if supermarkets would start to invest in local food production the way they have built the vast infrastructure of the food superhighway? My hope is that the resurgence in home vegetable gardening and demand for organic produce might just be the catalyst we need to start building truly sustainable food systems for the future.