They did this because they discovered that the food consumed by North Americans came an average distance of 2400 kilometers, and that the amount of locally grown products on area dining tables had fallen by one-quarter since 1980.
因為他們發現今天北美居民的食物，平均來自 2,400 公里之外，和 1980 年相比，餐桌上本地食物的比例也減少了 1/4。