A sustainable product is one that provides environmental, social and economic benefits over its full life-cycle. Today most work is being done on separate parts of the life-cycle, but in the future we will increasingly see products that really do aim to be sustainable as a whole. Some could argue that there is no such thing as a truly sustainable product. All products need energy, water and materials to be designed, produced and used. But much work is being done to reduce the impacts of products across the life-cycle.