Thomas Abdallah, P.E. LEED AP, is the Deputy Vice President and Chief Environmental Engineer for the MTA New York City Transit. He holds a B.S. in Chemical Engineering from Rutgers University, and is a Professional Engineer and a LEED® Accredited Professional.  Mr. Abdallah is an Adjunct Professor at Columbia University in the Sustainability Management graduate program. Thomas Abdallah is the author of Sustainable Mass Transit: Challenges and Opportunities in Urban Public Transportation which discusses the sustainable attributes of mass transportation, and the ways it can become more energy efficient, less reliant on fossil fuels, and reduce carbon footprint.