Professor Trevor Letcher is an Emeritus Professor at the University of KwaZulu-Natal, South Africa, and living in the United Kingdom. He was previously Professor of Chemistry, and Head of Department, at the University of the Witwatersrand, Rhodes University, and Natal, in South Africa (1969-2004). He has published over 300 papers on areas such as chemical thermodynamic and waste from landfill in peer reviewed journals, and 100 papers in popular science and education journals. Prof. Letcher has edited and/or written 32 major books, of which 22 were published by Elsevier, on topics ranging from future energy, climate change, storing energy, waste, tyre waste and recycling, wind energy, solar energy, managing global warming, plastic waste, renewable energy, and environmental disasters. He has been awarded gold medals by the South African Institute of Chemistry and the South African Association for the Advancement of Science, and the Journal of Chemical Thermodynamics honoured him with a Festschrift in 2018. He is a life member of both the Royal Society of Chemistry (London) and the South African Institute of Chemistry. He is on the editorial board of the Journal of Chemical Thermodynamics, and is a Director of the Board of the International Association of Chemical Thermodynamics since 2002. Valerie L. Shulman is the Secretary General of the European Tyre Recycling Association (ETRA). The research she initiated in 1989 formed the nucleus of ETRA which was founded five years later. ETRA has over 250 member companies and organisations in 46 countries, worldwide. Dr. Shulman was a contributor to the Basel Convention Guidelines on Use Tyres (1999) and has represented the recycling industries at Waste Policy hearings in the European Parliament. She has participated in numerous research projects, prepared more than 100 articles in scientific and industry journals and authored or co-authored several books on tyre recycling technologies, materials and applications. Dr. Serji Amirkhanian is a Professor of Civil Engineering at the University of Alabama, Tuscaloosa, USA. He was the Mays Professor of Transportation and the Director of the Asphalt Rubber Technology Services (ARTS) in the Department of Civil Engineering at Clemson University until June of 2010, before he started his international consulting activities. He is also an Adjunct Research Faculty at UNLV and an Adjunct Professor at Arizona State University (ASU). In addition, he is an Adjunct Faculty at IIT Madras (India) and a professor of Civil Engineering at Wuhan University of Technology (Wuhan, China). Dr. Amirkhanian started his teaching career in 1987 at Clemson University. The total dollar amount of his research and teaching the DOT certification courses contracts exceeded $25 million. His research has resulted in over 250 refereed journal papers, conference papers and research reports. He has also published two book chapters. In addition, he has conducted over 200 presentations around the country and the world presenting his research findings.