Dr. Singh is Professor of Environmental Science and past director of the USIC at Babasaheb Bhimrao Ambedkar (Central) University, Lucknow, Uttar Pradesh, India. He completed his Post-doctoral Research from University College of Swansea, U.K. His research area is bioremediation and phytoremediation of contaminated sites. His research highlighting the transformation of waste into useful product by using biological resources deserves special attention as it is considered future technology for sustainable environmental development. Dr. Singh has published his research findings in international peer-reviewed journals. He has had 101+ research publication in reputed journals, 28 book chapters, and five books.Dr. Vimal Chandra Pandey is an applied research scientist of phyto- and phycoremediation at Chandigarh University, India. He obtained his PhD from Dr. RML Avadh University and conducted post-doctoral research at Babasaheb Bhimrao Ambedkar University, India. Dr. Pandey's research focuses on the remediation and management of polluted sites using ecologically and socio-economically valuable plants and algae. His work focuses strongly on restoring ecosystem services and developing a bio-based economy in support of the UN SDGs. Dr. Pandey is a member of the IUCN commission on Ecosystem Management and the National Academy of Sciences, India. He is the author and editor of several books, including Elsevier's Algae and Aquatic Macrophytes in Cities, Bioremediation of Pollutants, and more.