3 November 2015 Prof Lenny Koh discusses AREC as part of the Disruptive Innovation Festival (DIF) Prof Koh presents her research into resource efficiency and the circular economy for the festival, linked to the Ellen MacArthur Foundation: Prof Koh presents her research into resource efficiency and the circular economy for the festival, linked to the Ellen MacArthur Foundation: Centres of excellence The СŷÊÓƵ's cross-faculty research centres harness our interdisciplinary expertise to solve the world's most pressing challenges. Centres of excellence