This is another important “Green Lecture” that I have found extremely inspirational in my own work (as a designer for an architect in San Francisco): Cameron Sinclair is the co-founder of Architecture for humanity, and an all round good guy. His interest in design and humanitarian efforts has led him to research and run competitions for architecture that aim to solve difficult real-world problems. His efforts, in my mind, are some of the most important “green” design works going on in the world because his work focuses on simple solutions that don’t require huge amounts of human or material resources. Definitely check out his video on the site!