Food for thought: Dishes that are both tasty and good for the planet

Is France's love of all things tasty leaving the planet with a nasty aftertaste? This week, we follow the Gout de France festival, where sustainable fare can come in many different forms. From an underground city farm to solar cooking and an eco-warrior chef, efforts to put seasonal and responsibly sourced food back on the menu are slowly but surely gaining ground. France in Focus gives you a recipe for change.