When was the last time you sat down to a meal and were concerned that the food on your plate came from halfway around the world? Or whether that same food would even be available at any cost in the future?
How about the questions, "What will we do if the food is no longer available?" or "What types of chemicals are they putting on this food to grow it in China and ship it to us?"
According to the National Sustainable Agriculture Information Service (www.attra.ncat.org/farm_energy/food_miles.html), the average "food miles" to get food from the farm to your plate in the U.S. is, on average, between 1,300 to 2,000 miles. Would you have thought that?
Another disturbing fact is that, since 1970, when the supposed endless supply of oil was available to us, truck shipping has dramatically increased, replacing the more energy efficient, and less carbon burning, rail and water transport used in other parts of the world, even today.
I have already blogged about the lack of environmental benefits from locally grown food here. Additionally, a weakness in the concept of “food miles” is raised by Wikipedia:
The calculation of food miles ignores questions of scale. Consider the following simplistic example: a small family farm produces 10 tons of produce, but has a small truck with capacity for only 1 ton. If the farm is located 100 miles (160 km) away from market, each piece of produce only travels 100 "food miles"; however, 10 trips are required to bring that produce to market. Now consider a farm located 1,000 miles (1,600 km) away but with a 10-ton truck. That farm's produce would travel 1000 "food miles" while consuming a slightly higher amount of energy (as a bigger truck needs less fuel per unit of mass transported).
The Wikipedia article above also cites a source which tells us that only 4% of the greenhouse gases produced by the food industry come from transporting the food from producers to retailers.
I am a strong believer in helping the environment, but I think that the things we do should make sense and be more than mere propaganda. Sometimes I wonder if people who proclaim to environmentalists are more concerned about actually helping the environment or making it look like they are helping the environment. Food for thought.
