First of all...

I participate in a CSA. I also buy meat from local farms. I tend to eat organic. I hunt now and then.

I lost 54lbs following the "Micheal Polan" diet - which is:

Eat Food.
Not To Much.
Mostly Plants.

This is very closely tied to "localism" and most importantly "sustainability".

But people here keep saying "sustainable" but I do not think that word means what you think it means.

Sustainable isn't automatically "organic". It isn't automatically low-efficiency, high-loss farming.

It's a matter of developing a system of food production that is capable of being mostly or entirely functional in a local to regional area.

Industrial farming is dependent on oil from the mid-east, chemicals from everywhere, and markets spanning the globe. It's also dependent on Government subsidies, because it's a fragile economic network. USDA subsidies in the United States totaled $245.2 billion from 1995-2009.From 1995 to 2009, the top 10 percent of recipients were paid 74 percent of all USDA subsidies.

Sustainable farms are far from perfect, but they are less entwined and, yes, they are more fragile individually. But as I've learned, the information age is making it possible to create virtual logistics webs between small farms - hybrid mesh networks of supply and demand that help farmers determine what to grow and where to sell and help buyers discover what is available.

My point is that "sustainable" means "durable" - even in the face of externalities.