Living on the hundred mile diet

I was reading this article about living on foods that only come from within 100 miles, as Vika prepares a lunch made from the local farmers market. Apparently doing it entirely is quite difficult. While I certainly accept that transport is a large portion of the energetic cost of many foods, particularly those shipped overland, I wonder about those foods that those of us lucky enough to live in or near port cities get via boat. As I understand it, boat transport is the most energetically efficient mode of transport known to man. Looking about, it appears that both rail and boat travel are more efficient, with the latter being much cheaper.

This doesn’t change much for this country, where the bulk of food shipping occurs via semi truck, but it seems clear that this is a fungible environmental impact.

(via WorldChanging)