The youth exchange took place from 22 June to 3 July 2021 in La Ferté Alais (in Essonne, 60 km from Paris) and brought together young people from Finland, Spain, Italy and France to work on the project "Stop 7th Containers", which refers to the several square kilometres of plastic on the surface of the oceans, ". The world faces the great challenge to combine a rising population with a world which has some limits regarding space and natural resources. The ways we live and consume will consequently determine the outcome of this challenge. The young people will contribute to make the world of tomorrow, and it is important that they start to think about it now in a global way. Many youths are already engaged in what can be associated with responsible ways of living. Still the consuming habits are sometimes hard to change. In our daily actions, daily tasks such as cooking, cleaning, building are central and are an interesting support to bring a deep reflection about the way we consume.