Model, author and entrepreneur, Summer Rayne Oakes shares how the biggest sustainable design innovations are spawning out of open-source collaboration. From the development of Walmart's Sustainability Index to the practice of collaborative production to the co-founding of her own company, Source4Style — a trends-driven marketplace reducing the boundaries to sustainable sourcing — Oakes captures the current zeitgeist that is shaping the future of design and helping make sustainable design possible throughout the world. From the 2012 GreenBiz Forum.