Peter Hoffman, national chair of the Chefs Collaborative, a nationwide network of food producers with a mission to advance a more sustainable food supply:
If you want to reduce your environmental impact, in particular your carbon dioxide emissions, then the less fossil fuels that are used to get food to you, the better. You can start simply by going to a farmer’s market, buying something locally produced and incorporating it into your regular shopping.Think about it. Patronize your local farmer's market. Or grow your own!