This expression refers to the circular economy. The circular economy is an economic system of production that aims, at all stages of the product (goods and services) life cycle, to increase the efficiency of how resources are used and reduce environmental impact while improving individuals’ well-being. Circularity is based on 7 pillars involving public authorities, private stakeholders, and citizens. These pillars include sustainable sourcing, eco-design, industrial and territorial ecology, functional economy, responsible consumption, extended useful life, and recycling. (Source: ADEME) It is often summarised by the 5 Rs: Refuse, Reduce, Reuse, Recycle, Rot.