Liat Arad is the VP of Marketing for UBQ Materials, a company that's spent many years developing a patented process to convert unsorted waste -- everything from banana peels to yogurt containers to mixed plastics and paper -- to create a sustainable, plastic alternative that can be used in the production of everyday goods. 

UBQ just unveiled the use of its material in a new sustainable McDonald's fast food tray, through a partnership with the world's largest McDonald's franchisee, Arcos Dorados. (See coverage of that partnership in Fast Company).