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With climate change warming the oceans, coral reefs remain some of the most vulnerable ecosystems. Keeping an eye on them can be time-consuming and expensive, since it requires divers to do spot-checks to see if the reefs are bustling, lively environments or if they are degrading into abandoned neighborhoods. But some researchers are increasingly tuning in to how reefs sound to monitor the corals\u2019 health and maybe even make them more resilient. In this episode of The Future of Everything, WSJ\u2019s Danny Lewis explores how listening to reefs may be the next frontier in trying to save them.\n\n\xa0\n\nFurther reading:\n\n\n\nFinancing a Healthy Future for Coral Reefs\xa0\n\nListen: Scientists Are Recording Ocean Sounds to Spot New Species\xa0\n\nDivers Discover Coral Reef in Pristine Condition\xa0\n\nGoogle AI Tries to Save the Whales\xa0\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices