What might be discussed in a brief essay on local food vs non-local food?

A brief essay on local versus non-local food could explore the advantages and disadvantages of each. For example, local food is likely to be fresher and generally in better condition since it has not traveled as far, and is less likely to have been frozen and thawed or subject to less-than-ideal temperature conditions, as non-local food is prone to be. On the other hand, non-local food might very well be less costly than locally produced food. This is because a local farm may be smaller and not able to reap the benefits of the economies of scale. If you have an acre or two of strawberries, as opposed to thousands of acres of strawberries, your overhead is probably far higher per acre than that of the larger farm. Even figuring in the cost of transportation, non-local food can be lower in cost. Another aspect of this is that if we consume only local food, we are missing a great deal. Where I live, bananas, pineapples, mangoes, and oranges are not local food, and I would really hate to give those up!