Our lifestyle, associated with consumption of large amounts of resources, implies to integrate eco-design in our innovations. In particular, recycling and circular economy have to be facilitated, when designing a product. Life Cycle Analyses (LCA) enable to identify the most impacting stages for environment. They often demonstrate the positive effects of recycling that i) limitates the depletion of natural resources, ii) enables energy savings, iii) lowers dissemination of pollutants, etc. Courses as well as collective projects aim at bringing to light environmental issues of eco-design and circular economy, as well as the resulting questions for engineers & researchers. Social responsibility is also identified as key for circular economy and how to train for social responsibility is discussed. Invited speakers from academia as well as industry provide complementary answers to academic ones