Skip to main content
Back to Show
PBS News Hour

Record ocean heat triggers massive coral reef bleaching

Scientists issued a warning due to record-breaking temperatures in 2023 which accelerated the speed of the second-largest mass coral bleaching event across the Atlantic, Pacific and Indian Oceans. Nearly a quarter of all ocean species rely on the reefs. William Brangham discussed the global situation and what’s at stake with Julia Baum, a marine ecologist and coral reefs researcher.

Support Provided By
Season
November 15, 2025 - PBS News Weekend full episode
26:46
November 15, 2025 - PBS News Weekend full episode
November 14, 2025 - PBS News Hour full episode
57:46
November 14, 2025 - PBS News Hour full episode
November 13, 2025 - PBS News Hour full episode
57:46
November 13, 2025 - PBS News Hour full episode
November 12, 2025 - PBS News Hour full episode
57:46
November 12, 2025 - PBS News Hour full episode
November 11, 2025 - PBS News Hour full episode
57:46
November 11, 2025 - PBS News Hour full episode
November 10, 2025 - PBS News Hour full episode
57:46
November 10, 2025 - PBS News Hour full episode
November 9, 2025 - PBS News Weekend full episode
26:45
November 9, 2025 - PBS News Weekend full episode
November 8, 2025 - PBS News Weekend full episode
26:44
November 8, 2025 - PBS News Weekend full episode
November 7, 2025 - PBS News Hour full episode
56:41
November 7, 2025 - PBS News Hour full episode
November 6,  2025 - PBS News Hour full episode
57:46
November 6, 2025 - PBS News Hour full episode
November 5, 2025 - PBS News Hour full episode
57:46
November 5, 2025 - PBS News Hour full episode
November 4, 2025 - PBS News Hour full episode
56:45
November 4, 2025 - PBS News Hour full episode
Active loading indicator