Each year billions of pounds of food go to waste. That means billions of dollars, too. The Environmental Protection Agency says more food reaches landfills and incinerators than any other one material in our trash. And for supermarkets, that leftover food equates to lost dollars.
One New England supermarket chain is now trying to get some of those dollars back by sending old food once consigned to trash compactors to a giant energy plant in Massachusetts. It’s called an “anaerobic digester,” and it’s basically a big metal stomach, which gobbles up old food — and turns that waste into power.