introduces CO2 geological sequestration and gas hydrate at the molecular-scale, with research including interfacial properties of multiphase, multicomponent systems, hydrogen bonding properties, adsorption characteristics of CO2CH4 in the pore, kinetic properties of decomposition/nucleation/growth of gas hydrate, the influence of additives on gas hydrate growth dynamics, and hydrate prevention and control technology. This book focuses on research-based achievements and provides a comprehensive look at global progress in the field. Because there are limited resources available on carbon geologic sequestration technology and gas hydrate technology at the molecular level, this book fills a gap in scientific literature and elucidates on further research.