Milieukontakt initiates partnerships to improve the quality of life by enhancing people’s participation in the development of ecologically sustainable societies. Milieukontakt cooperates with (inter)national partners because environmental problems do not stop at borders. Many of the current environmental challenges are worldwide. On the local level people can be supported and learn from the experiences of others working in other parts of the world with the same problems. Milieukontakt connects people, organisations, and networks that deal with the same challenges and want to cooperate towards enhancing people’s participation in defining their own future. Milieukontakt will provide people with the means and skills to actually use the possibilities for participation, including training, (legal) advice, assistance and seed financing. Participatory decision-making processes are essential in these partnerships. Milieukontakt focuses on the research and development of tools for participatory learning, decision-making, and project implementation.