Buy Locally and Organic Food

Obviously the most "green" food is organic, local, vegan food. And although this can sometimes be aquired. But given the choice, which is more "green"? Locally grown is in the end the most green, but organic is quite good also and better for your health. Point being, if you absolutely need a certain ingredient or want to improve your health, buy organic; but if you want to make up for that long car trip, but local.