"[An] overview of fluid mechanical processes occurring at the different interfaces existing in the realm of Environment Fluid Mechanics (EFM), [include, but are not limited to] the air-water interface, the air-land interface, the water-sediment interface, and the water-vegetation interface.  Across any of these interfaces, mass, momentum, and heat are exchanged through different fluid mechanical processes over various spatial and temporal scales."—Thank you, Carlo Gualtieri & Dragutin T. Mihailović (editors) for Fluid Mechanics of Environmental Interfaces, 2nd. Ed., CRC Press, 2012, p.vii