Reducing your impact

Researcher Pamela Martin offers these tips for reducing the overall environmental impact of your diet.

•Eat less meat — especially grain-fed red meat — which is one of the most energy-intensive foods in the world.

•Eat local, seasonal and sustainable produce, as it requires the fewest energy inputs and leaves the lightest footprint on the environment.

•Sign up for regular deliveries of seasonal produce from a nearby farm.

•Use an efficient refrigerator and stove, as household preparation and storage can account for 28 percent of your "food footprint."

Take green transportation to the market or buy a week's worth of groceries in one car trip.