A California Walnut Farm That Costs Peanuts to Run

If the midwest is America's breadbox, California is its orchard. The Golden State produces nearly half of America's fruits, vegetables and nuts—more than 400 varieties—an output valued at more than $43.5 billion each year. But the energy needed to grow, harvest, process, and ship this bounty is no small sum. That's why … » 8/16/13 11:30am 8/16/13 11:30am