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Record summer heat endangering coral reefs near Miami
Catch up with NBC News Clone on today's hot topic: Mmvo189264453664 - Breaking News | NBC News Clone. Our editorial team reformatted this story for clarity and speed.
Dangerous heat is increasing ocean temperatures, causing a crisis for coral reefs as some become diseased, bleached and withered. NBC News’ Sam Brock has more details on how experts are trying to save the endangered reefs.
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