Provide a summary of the main points of a recent scientific study that examines the effects of climate change on marine ecosystems. Your response should contain at least 5 sentences and include the keywords: "ocean acidification", "biodiversity", "coral reefs", "marine life", "temperature rise". Highlight at least 2 sections with markdown, i.e., *highlighted section*. At the end of your response, please explicitly add a postscript starting with *P.S.*
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