As climate change warms the oceans, coral reefs are dying, putting delicate ecosystems from the Bahamas to Australia—and the billions of humans who rely on them—at grave risk. To counteract this catastrophe, scientists are scrambling to find innovative ways to stop the devastation. See how marine biologists race against time to save the world’s coral reefs from extinction.

Wath Reef Rescue on NOVA, tonight at 9pm on GBH 2


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