'Displacement' weighs the enormity of mans impact on the planet. The marine transportation industry is one of the largest polluters on the planet (50,000 cargo ships a day), using Bunker Fuel, an extremely dirty producing product. Boats are typically measured in displacement and the title in this case has a symbolic double meaning, the disturbance and upheaval of the natural process. The dolphins riding the wave is symbolic of nature having to adapt to the changing conditions and there is an inherent optimism in the interaction.