In most European schools of engineering, the students are not well prepared to integrate socio-economic and environmental issues efficiently into their future professional activities. It is argued that necessary changes include a more interdisciplinary and systems-oriented approach to the problems, as well as better training in communication skills. An example of an interdisciplinary seminar entitled ‘Ethics, technology, society and environment’ and developed by the author of this paper is presented with many details. This seminar is followed by second-year students in engineering. Finally, other suggestions are presented as possible ‘starters’ to the necessary changes in the schools of engineering.