This thesis is the result of a design project conducted in participation with two product design studios. The design project investigates the potential for sustainable impact in product design, and how product design practitioners could interface with higher levels of design for sustainability. The researchers have used a Science and Technology studies approach and pushed the product design practitioners in this transition. During the project, two case studies are developed on the bases of interviews and participant observation. The cases map out a set of different design processes to find ways to include more sustainable choices in them. A framework for sustainability in product design has been presented and based on current establish knowledge, and the case studies, a design specification for a design solution been constructed. Through a systematic and iterative design synthesis, the authors, in participation with the project collaborators, constructed a framework for teaching sustainability in product design on three-tiers, called Sustainable Thinking.

Key Words: Design For Sustainability, Product Design, Case-studies, Design Process