After earning a Bachelor’s in Mechanical Engineering and a Master’s in Environmental and Water Resources Engineering at the American University of Beirut, he obtained his PhD in Environmental Engineering from Johns Hopkins University in 2005. Prior to joining Princeton in 2008, he was a postdoctoral researcher at the École Polytechnique Fédérale de Lausanne in Switzerland where he was awarded the prize of the “Fondation Latsis Internationle.” His broad research interests are in developing a fundamental understanding and better predictive tools for flow, and energy and mass transport in the environment. These advances are then applied to various problems ranging from atmospheric flows over complex urban surfaces and the implication for urban sustainability, to wind farm modeling and optimization.