Megh R. Goyal, PhD, PE, is a Retired Professor in Agricultural and Biomedical Engineering from the General Engineering Department in the College of Engineering at the University of Puerto Rico-Mayaguez Campus. He has worked as a Soil Conservation Inspector and as a Research Assistant at Haryana Agricultural University and Ohio State University. He was the first agricultural engineer to receive the professional license in Agricultural Engineering from the College of Engineers and Surveyors of Puerto Rico and was proclaimed as the "Father of Irrigation Engineering in Puerto Rico for the twentieth century" by the ASABE, Puerto Rico Section, for his pioneering work on micro irrigation, evapotranspiration, agroclimatology, and soil and water engineering. During his professional career of over 52 years, he has received many prestigious awards. A prolific author and editor, he has written over 200 journal articles and several textbooks and has edited over 100 books. He has also received many awards for his work.

Shrikaant Kulkarni, PhD, has 37 years of teaching and research experience at both the undergraduate and postgraduate levels. He is currently an Adjunct Professor in the Faculty of Science and Technology at Vishwakarma University, Pune, India. He has published over 100 research papers and authored 30 book chapters in CRC, Springer, and Elsevier books. He has edited several books on green engineering and renewable materials and coauthored four chemistry textbooks. He has been invited by UNESCO to give a talk on "Green Chemistry Education for Sustainable Development" at the IUPAC international conference on green chemistry held at Bangkok (Thailand) and is an esteemed team member of the United Nations Conference on Sustainable Development (UNCSD).