A research organization in the European Union has developed bioplastic packaging that extends the shelf life of food and has a sensor that notifies retailers and consumers of when the food inside is really no longer fit to eat. About a third of all food produced on the planet is wasted. This isn’t simply just an economic or ethical problem, but also causes unnecessary greenhouse gas emissions. The new packaging is made of biopolymers with added nanoparticle components that provide improved food preservation properties.