Luk Van Wassenhove, INSEAD Emeritus Professor of Technology and Operations Management, is one of the world's foremost researchers on business and sustainability. Long before the phrase "circular economy" was widely known, he was partnering with companies to reduce waste in their supply chains. In addition, he has decades of experience helping NGOs improve their delivery of services in some of the most challenging contexts imaginable -- places where, as he puts it, "you might get shot at" in the normal course of humanitarian work. Luk joins us to discuss what he has learned over his eventful career about how to harmonise sustainability and profitability. He also offers insights about the state of the circular economy and other efforts to improve the environmental impact of business in our perilous world.