We wanted to set up a project around ecology that corresponded to the expectations and interests of young people of this generation. Through the theme of living ecology rather than talking about it, making young actors through an intercultural exchange with a European vision and scope. The young people worked together on the implementation of Zero Waste stays while meeting experts and practicing ecology in order to increase their skills and knowledge. The objectives of this project were: - promote and give concrete meaning to European values of respect for human dignity, of freedom, democracy and equality. - develop diversity in all its forms (gender, social, cultural, etc.) - promote autonomy and critical thinking - allow concrete actions of sharing and ecological transition - initiate, initiate concrete and reflective work around international zero waste exchanges.