It's sustainable. Many grocers have tried to solve the packaging waste problem, but Berlin-based supermarket Original Unverpackt thinks it has the answer. Replacing boxed or encased grocery items with bulk-bin style shopping, the supermarket is entirely packaging-free.

France takes its food waste seriously. In 2013 the French government set out targets to cut it in half, since currently ten million tonnes are unnecessarily thrown away each year. Joining the anti-waste movement is JustoClic – an app that'll find unsold goods a home.

A new $700 billion opportunity has emerged from the unlikeliest of places: the bin. As sustainability goes mainstream, smart businesses are adding value to their brands by making sustainability cool, cost-effective and convenient.

Each year, almost half of the world's food is thrown away. Putting the wasted food to wider social and commercial use, start-up Rubies in the Rubble makes gourmet chutneys from surplus fruit and veg.