The R20 conference, taking place January 31st-February 1st, 2013 in Vienna, with Founding Chair Arnold Schwarzenegger, focuses on the topic of implementing the sustainable energy future. On that occasion, we had the chance to meet with Kandeh Yumkella, Director General UNIDO. We asked him what Renault-Nissan could do to develop a more sustainable and energy efficient future for all. Here is what he told us.