Sustainability and discontinuity -- Products, contexts and capacities -- A social learning process -- Life cycle design -- Minimising resource consumption -- Selecting low impact resources and processes -- Product lifetime optimisation -- Extending the lifespan of materials -- Facilitating disassembly -- System design for eco-efficiency -- Environmental complexity and designing activity -- Estimating the environmental impact of products : life cycle assessment -- Environmentally sustainable design-orienting tools -- Evolution of sustainability in design research and practice -- Appendices.