"Math Lessons for Locavores"

Makes sense.

But their are other reasons for wanting to support local, non-industrial production. 

I think there are some serious problems with our overly-centralized food production system.  Yes, it is more efficient.  But the quality of the product is declining.  Foods are becoming less nutritious (vitamin and mineral levels in vegetables are declining), when they're not becoming downright toxic (grain-finished meats and modern wheat strains).

This is a cause for great concern.

I'm beginning to think the French are correct in their efforts to preserve their culinary and agricultural traditions.  They may not be going about it in the best possible way, but the thought is correct.