Interfacial Science for Geosystems Engineers provides geoscientists the connections between the nano-scale physico-chemical interactions between fluids and minerals and the core/field-scale observations to manage energy extraction, water resources and subsurface storage, timely topics central to the energy transition. Packed with latest research and recent developments, chapter learning objectives, and illustrative diagrams, tables and charts throughout, this specialized volume will help geosystems engineers tackle the above challenges, by systematically going through the basics of surface and interfacial tension, capillarity, surfactants, surface free energy, adsorption, electrokinetics, colloidal stability, equilibrium and stability of thin liquid films, wettability, microemulsions, emulsions and foams, and polymers for subsurface applications. Useful as a teaching, training or reference text, Interfacial Science for Geosystems Engineers prepares today's subsurface scientists and engineers to tackle two pressing problems in the energy transition, by introducing recent developments on how to remove CO2 from our environment and how to wean ourselves off fossil energy while meeting growing energy demands.