1. Variability of the Deep water Horizon Surface Oil Spill Extent and its Relationship to Varying Ocean Currents and Extreme Weather Conditions: Gustavo J. Goni, Joaquin A. Trinanes, Amy MacFadyen, Davida Streett, María Josefina Olascoaga, Marc L. Imhoff, Frank Muller-Karger and Mitchell A. Roffer.- 2. A Strategy for Bioremediation of Marine Shorelines by Using Several Nutrient Release Points: David Parra-Guevara and Yuri N. Skiba.- 3. Prediction of the Formation of Water-in-Oil Emulsions: Merv Fingas.- 4. Equilibrium Theory of Bidensity Particle-Laden Flows on an Incline: Sungyon Lee, Jeffrey Wong and Andrea L. Bertozzi. 5 Operational Oil Spill Modelling: From Science to Engineering Applications in the Presence of Uncertainty: Ben R. Hodges, Alejandro Orfila, Juan M. Sayol and Xianlong Hou.- 6. Application of a Numerical Statistical Model to Estimate Potential Oil Spill Risk: Weijun Guo and Tiaojian Xu.- 7 Structural Analysis of Oil-Spill Booms: Frédéric Muttin.