Provide a summary of the following article in at least 100 words, but do not exceed 150 words. The article is about the impact of climate change on coastal cities, specifically focusing on the city of Miami. Highlight at least two sections in your answer with markdown, i.e., *highlighted section*. The summary should include the main points discussed in the article, such as the rising sea levels, increased frequency of extreme weather events, and the economic and social implications for the city. At the end of your response, please explicitly add a postscript starting with *P.S.*
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