Every year, the planet loses nearly a third of its food—a staggering 1.4 billion tons. That’s according to a 2011 United Nations study that assessed food networks in 152 countries. The researchers’ results reveal where in the food-supply chain farmers, engineers, and consumers might more effectively get comestibles into mouths. What to do about it The planet may have to feed a global population of 10 billion people by 2050. […]