Jim Best is the Threet Professor of Sedimentary Geology and Professor of Physical Geography at the University of Illinois, Urbana-Champaign. He researches the fluid and sediment dynamics of modern Earth surface environments and the interpretation of such sediments in the geological record. Stephen Darby is Professor of Physical Geography at the University of Southampton. He researches processes of flooding, erosion, and deposition and their implications for river management, especially in the world's largest river systems. Luciana Esteves is Associate Professor of Physical Geography at Bournemouth University. She researches changes in coastal areas driven by natural and human-induced processes and coastal management options to reduce erosion and flooding risks. Carol Wilson is Associate Professor of Deltaic Wetland Sedimentology and Geomorphology at Louisiana State University. Her research centers on quantifying the eco-physical processes that shape deltas and coastal wetlands.