Up Next
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

26:45
September 13, 2025 - PBS News Weekend full episode

57:46
September 12, 2025 - PBS News Hour full episode

57:46
September 11, 2025 - PBS News Hour full episode

57:46
September 10, 2025 - PBS News Hour full episode

57:46
September 9, 2025 - PBS News Hour full episode

56:44
September 8, 2025 - PBS News Hour full episode

26:45
September 7, 2025 - PBS News Weekend full episode
26:45
September 6, 2025 - PBS News Weekend full episode

57:46
September 5, 2025 - PBS News Hour full episode

57:46
September 4, 2025 - PBS News Hour full episode

57:46
September 3, 2025 - PBS News Hour full episode

57:46
September 2, 2025 - PBS News Hour full episode