Map of Contiguous United States Showing Color-Coded Urban Centers (IMAGE)

Tufts University, Health Sciences Campus

Map of Contiguous United States Showing Color-Coded Urban Centers

Caption

A new modeling study finds that urban centers in green could feed themselves with cultivated cropland located within an average distance of 250 kilometers (155 miles), but urban centers in yellow, orange and red would need to draw from wider areas - 250 kilometers or more.

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Tufts University

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