Ikea’s big blue buildings have sprouted solar panels and wind turbines. Inside these buildings shelves are stocked with LED lighting and recycled cotton. In this TED Talk┬áSteve Howard tells us “Sustainability has gone from a nice-to-do to a must-do.” Howard, the chief sustainability officer at the furniture mega-store, talks about his quest to sell eco-friendly materials and practices — both internally and to worldwide customers — and lays a challenge for other global giants.

Watch this TED Talk on Sustainability