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
December 14, 2025 - PBS News Weekend full episode
26:45
December 14, 2025 - PBS News Weekend full episode
December 13, 2025 - PBS News Weekend full episode
26:45
December 13, 2025 - PBS News Weekend full episode
December 12, 2025 - PBS News Hour full episode
57:46
December 12, 2025 - PBS News Hour full episode
December 11, 2025 - PBS News Hour full episode
57:46
December 11, 2025 - PBS News Hour full episode
December 10, 2025 - PBS News Hour full episode
57:46
December 10, 2025 - PBS News Hour full episode
December 9, 2025 - PBS News Hour full episode
56:45
December 9, 2025 - PBS News Hour full episode
December 8, 2025 - PBS News Hour full episode
56:45
December 8, 2025 - PBS News Hour full episode
December 7, 2025 - PBS News Weekend full episode
24:09
December 7, 2025 - PBS News Weekend full episode
December 6, 2025 - PBS News Weekend full episode
24:09
December 6, 2025 - PBS News Weekend full episode
December 5, 2025 - PBS News Hour full episode
57:46
December 5, 2025 - PBS News Hour full episode
December 4, 2025 - PBS News Hour full episode
57:46
December 4, 2025 - PBS News Hour full episode
December 3, 2025 - PBS News Hour full episode
57:46
December 3, 2025 - PBS News Hour full episode
Active loading indicator