Your title should enable you to provide critical analysis/discussion within your essay. For those topic areas that include social science, your essay must contain some physical science. This need not be a 50/50 split, but as a rough figure at least 30% physical science.
Outline how climate change influences sea level rise. You can explore the impact of current and / or projected sea level rise for the area of your choice, and you can evaluate different adaptation and mitigation methods to cope with sea level rise in the area of your choice.