Yu-Ling Cheng is the Distinguished Professor in Global Engineering, and Professor, Department of Chemical Engineering & Applied Chemistry in the Faculty of Applied Science & Engineering at the University of Toronto (UofT). She leads several global engineering research and teaching initiatives at UofT, including the Reinvent the Toilet Challenge funded by the Bill and Melinda Gates Foundation. More details here: http://www.chem-eng.utoronto.ca/faculty-staff/faculty-members/yu-ling-cheng/