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
October 1, 2025 - PBS News Hour full episode
57:46
October 1, 2025 - PBS News Hour full episode
September 30, 2025 - PBS News Hour full episode
57:46
September 30, 2025 - PBS News Hour full episode
September 29, 2025 - PBS News Hour full episode
57:46
September 29, 2025 - PBS News Hour full episode
September 28, 2025 - PBS News Weekend full episode
26:45
September 28, 2025 - PBS News Weekend full episode
September 27, 2025 - PBS News Weekend full episode
26:45
September 27, 2025 - PBS News Weekend full episode
September 26, 2025 - PBS News Hour full episode
57:46
September 26, 2025 - PBS News Hour full episode
September 25, 2025 - PBS News Hour full episode
57:46
September 25, 2025 - PBS News Hour full episode
September 24, 2025 - PBS News Hour full episode
56:45
September 24, 2025 - PBS News Hour full episode
September 23, 2025 - PBS News Hour full episode
56:50
September 23, 2025 - PBS News Hour full episode
September 22, 2025 - PBS News Hour full episode
57:46
September 22, 2025 - PBS News Hour full episode
September 21, 2025 - PBS News Weekend full episode
26:45
September 21, 2025 - PBS News Weekend full episode
September 20, 2025 - PBS News Weekend full episode
26:45
September 20, 2025 - PBS News Weekend full episode
Active loading indicator