Replanting America: 90 percent of what we eat could come from local farms. Changing what’s grown where could provide Americans with vegetables from close to home.

by Dan Nosowitz

Eating a local diet—restricting your sources of food to those within, say, 100 miles—seems enviable but near impossible to many, thanks to lack of availability, lack of farmland, and sometimes short growing seasons. Now, a study from the University of California, Merced, indicates that it might not be as far-fetched as it sounds. “Although we find that local food potential has declined over time, our results also demonstrate an unexpectedly large current potential for meeting as much as 90 percent of the national food demand,” write the study’s authors. Ninety percent! What?