This poster describes the escalating erosion of islands in the Chesapeake Bay, focusing on Holland Island as a case study. Natural subsidence and wave action cause some erosion, but the current escalated rates are closely linked to rising sea levels. This became the third or fourth poster in the class that explored problems caused by global climate change, though my poster focuses on the human environment rather than natural systems. The piece borrows its style from nautical charts. It is anchored by the image of a sinking house. Three elements – the map of the island’s receding shoreline, the graph of rising sea levels, and text – provide a factual base. The nautical-chart language relates directly to the littoral subject matter. The poster becomes a chart describing the consequences of erosion, the steady disappearance of Holland Island

An early version. I noticed a relationship between the source image, with its circles and navigational theme, and a nautical chart. Searching for maritime subjects, I discovered the issue of island erosion in the Chesapeake Bay. This draft takes the vocabulary of a navigational chart, and attempts to use the idea of lighthouse danger areas as a metaphor for dangerous climate conditions.