It is estimated that each year the world's population consumes more renewable resources than the planet can generate. This tendency is becoming more pronounced, since the world's middle classes are growing and extreme poverty is declining. In this context, the circular economy is attracting growing interest from citizens, entrepreneurs, governments and the academic world. To avoid the depletion of resources, this "tomorrow" economy proposes the reduction of waste. It is based on the extension of the duration of use of products, the intensification of recycling - or even the end of waste - the sustainable management of resources, policies governing production and the shared use of goods And services. Finally, it resolutely dissociates itself from unlimited growth in the consumption of resources.