Located in Austin, Texas, in.gredients is a retailer with a twist: it aims to be 'the first package-free and zero-waste grocery store in the US'. Following in the footsteps of similar initiatives, the project trades convenience for ethics.

Consumers are most likely to fork out for value-added food and beverage packaging that relates to freshness and sustainability. According to a global study conducted by Ipsos InnoQuest, 55% said they would pay more for green packaging.

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.