(1) Ellen MacArthur Foundation: Upstream Innovation. A guide to packaging solutions. (Link)
(2) Tom Hunt, The Guardian, June 2017. “Fruit and veg come in their own natural wrapping. Why do we smother them in plastic?” (Link)
(3) Waitrose (2019). Waitrose Unpacked refillables test to launch in more shops after positive response in Oxford. (Link).