“Exchange for change” is the title of a 3 year multilateral school partnership between Finland, France, Portugal and Sweden. Global climate change affects the whole world. There is so much information and disinformation about it, so many ways to think and behave. Many pupils are worried and want to act correctly so that the environment and coming generations will have a future. By this project the pupils will pay more attention to their own consumption habits, find and get information about sustainable development from different points of views, share and evaluate it with the pupils from other participating organisations. By working together in European level they will have more tolerance and understanding to other cultures. The objectives in this project are that students and participating organisations will have to appreciate and understand the impact that their way of life is having on the sustainability of the environment. To produce concrete results of how much the pupils consume.