The 'eat local' food movement often touts the environmentally sound benefits of short shipping distance.  It ignores one important thing: scale.  Shipping in small scale, even at a shorter distance increases the fuel use and emissions per unit of food.  Oblivious to this simple maths, to me, illustrates how disingenuous the movement activists (or marketers, take your pick) and how willfully ignorant those die hard consumers are, yet the same people have no problem eating some exotic 'super food' trendy at the time from far away land.