Dr. S. M. Karisiddaiah is a distinguished Earth scientist with a PhD and more than 45 years of extensive research experience. He played a pioneering role in India’s manganese nodule recovery in 1981 and has made significant contributions to marine geoscience. Dr. Karisiddaiah has authored over 40 research papers and a book on climate change. His work has greatly advanced the scientific understanding of gas hydrates and the geodynamics of oceanic ridges, establishing him as a respected authority in the field of Earth and ocean sciences.