William McDonough explains steel's place in his 'Cradle to Cradle' concept

William McDonough, architect, designer, thought leader, author and originator of the 'Cradle to Cradle' concept is a globally recognised leader in sustainable development. He explains how his ambition to eliminate the concept of waste is helping companies and communities think differently about how they make, use and dispose of things, and the value he believes steel will have in the circular economy of the future. Find out more: http://steligence.arcelormittal.com/