You are supporting a more environmentally friendly kind of agriculture that supports a planet with richer soil and a cleaner water supply.  Also, you are eating food that is better for your health.  Local food is fresher, doesn't have to travel thousands of miles to reach you, and is less expensive.and it is also better for our local economy.  when you choose local you are supporting the conservation of fuel resources, economic viability of local communities, freshness and better taste.