Dr. Sonia Yeh is Professor in Transport and Energy Systems in the Department of Space, Earth and Environment. Her expertise is in energy economics and energy system modeling, alternative transportation fuels, sustainability standards, technological change, and consumer behavior and urban mobility. Her role as Professor in Transport and Energy Systems is building ties with faculty, researchers and students whose research interests lie in the distinct disciplines of energy, system modeling, sustainability, and information and communication technology (ICT), and bring them together in an emerging space of system modeling for the sustainability of integrated mobility. Throughout her work, she has advised and worked broadly with U.S. state and international advisers, policymakers, a wide range of stakeholder groups and academic researchers in developing climate policies toward reducing the environmental impacts and GHG emissions from transport. Between 2007 and 2014, she co-led a large collaborative team from the University of California (UC) Davis and UC Berkeley advising the U.S. states of California and Oregon, and British Columbia, Canada to design and implement a market-based carbon policy (Low Carbon Fuel Standard (LCFS) and Clean Fuel Standard (CFS)) targeting GHG emission reductions from the transport sector. She received Academic Federation Award for Excellence in Research (Sole Recipient) by the UC Davis in 2014 and was appointed as Adlerbertska visiting professor at Chalmers University of Technology in 2015. She served as Fulbright Distinguished Chair Professor in Alternative Energy Technology in 2016-2017. Volvo Research and Educational Foundations recognized her contribution and awarded her the Håkan Frisinger Award in 2019.