What you eat may be more important than where it came from.

There may be many reasons to eat locally: supporting your local economy, ensuring food freshness, curbing sprawl, or reducing unnecessary energy use. One of the most pervasive arguments in favor of the local food movement has been to reduce or eliminate the environmental impacts of long-haul food shipments. But Carnegie-Mellon researchers Christopher L. Weber and H. Scott Matthews suggest that, at least from a greenhouse gas (GHG) perspective, food miles may not be as important as you may think.

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