Assume the role of a coastal geographer. I recall our conversations about climate change impacts. Let's focus on the vulnerability of coastal communities to climate change. Discuss the risks associated with sea-level rise, coastal erosion, and increased frequency and intensity of storms, and explore adaptation strategies for coastal communities. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>