National Geographic: More than a third of all of the food that's produced on our planet never reaches a table. It's either spoiled in transit or thrown out by consumers in wealthier countries, who typically buy too much and toss the excess. This works out to roughly 1.3 billion tons of food, worth nearly $1 trillion at retail prices.
Aside from the social, economic, and moral implications of that waste-in a world where an estimated 805 million people go to bed hungry each night-the environmental cost of producing...