Patricia J. Culligan is the Robert, A. W. and Christine S. Carlton Professor of Civil Engineering at Columbia University. Her expertise lies in the field of geo-environmental engineering, with an emphasis on water resource management and issues related to urban and environmental sustainability. Her research group is currently active in investigating the opportunities for green infrastructure, social networks and advanced measurement & sensing technologies to improve the management of urban water, energy, and eco-system services. She is one of the lead investigators of a $12 million research network sponsored by the National Science Foundation (NSF) to develop new models for urban infrastructure to make cities cleaner, healthier, and more enjoyable places to live. Culligan also has expertise in nuclear waste management and disposal, and has served on the National Academies Nuclear and Radiation Studies Board as well as the Board of Governors of the ASCE’s Geo-Institute. She has received numerous research and teaching awards for her academic contributions, including the National Science Foundation’s CAREER AWARD and Columbia University’s Presidential Teaching Award. She is the author or co-author of more than 150 technical articles.