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PBS News Hour

How underwater speakers are helping revive coral reefs

Season 2026 Episode 97 | 5m 12s

Coral reefs are essential to the health of oceans, the food supply and to protecting the coast from storms. But as climate change pushes ocean temperatures higher, reefs are dying and bleaching events have put them at higher risk. Special correspondent Ben Tracy with Climate Central reports on an unlikely tool to bring reefs back from the brink. It's part of our series, Tipping Point.

Major corporate funding for the PBS News Hour is provided by BDO, BNSF, Consumer Cellular, American Cruise Lines, and Raymond James. Funding for the PBS NewsHour Weekend is provided by Consumer Cellular and Cunard Cruise Line. For a complete list of funders for the PBS NewsHour and PBS NewsHour weekend, click here.
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