Ahindra Nag, Ph.D., FIC, MIC, has worked as an educator and researcher in the Department of Chemistry at the Indian Institute of Technology, Kharagpur for the past 34 years. Additionally, he has served as a visiting professor in the United States and Italy. Nag holds three patents, and has published numerous research papers in major national and international journals. He is the author of ten other books, including Biofuels Refining and Performance; Biosystem Engineering; and Solid Waste Management. Nag is on the editorial board of several renowned journals and is an organizing member of the Green Chemistry Society.