Marc A. Rosen is a professor at Ontario Tech University (formally University of Ontario Institute of Technology) in Oshawa, Canada, where he served as founding Dean of the Faculty of Engineering and Applied Science. He is also the Editor-in-Chief of the International Journal of Energy and Environmental Engineering and the founding Editor-in-Chief of Sustainability. He has written numerous books and journal articles. Professor Rosen received the President's Award from the Canadian Society for Mechanical Engineering in 2012. He is an active teacher and researcher in sustainable energy, environmental impact of energy and industrial systems, and energy technology (including heat transfer and recovery, renewable energy and efficiency improvement). His work on exergy methods in applied thermodynamics has been pioneering and led to many informative and useful findings. He has carried out research on linkages between thermodynamics and environmental impact and ecology. Much of his research has been carried out for industry.